chore: remove deprecated NetworkDisplay component

[georgewrmarshall]

Description

This PR removes the unused NetworkDisplay component from the codebase. The component was not being used anywhere in the application and was contributing to technical debt.

Changelog

CHANGELOG entry: null

Related issues

Fixes: #20485

Manual testing steps

1. Verify the application builds successfully without errors

Screenshots/Recordings

N/A - This is a code cleanup change with no UI impact

Before

NetworkDisplay component existed but was unused

After

NetworkDisplay component and all related files removed

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I've included tests if applicable
• I've documented my code using JSDoc format if applicable
• I've applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

---

Note

Removes the unused NetworkDisplay component and cleans up all imports and references.

• UI Cleanup:
  • Remove component: Delete ui/components/app/network-display/* (component, styles, stories).
  • Remove references:
    • Drop @import 'network-display/index' from ui/components/app/app-components.scss.
    • Remove NetworkDisplay import and entry from ui/components/app/metamask-template-renderer/safe-component-list.js.
  • Update tooling: Remove network-display entries from development/ts-migration-dashboard/files-to-convert.json.

^{Written by Cursor Bugbot for commit 2fcced1. This will update automatically on new commits. Configure here.}

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[metamaskbot]

✨ Files requiring CODEOWNER review ✨

✅ @MetaMask/confirmations (1 files, +0 -2)

• 📁 ui/
  • 📁 components/
    • 📁 app/
      • 📁 metamask-template-renderer/
        • 📄 safe-component-list.js +0 -2

---

🫰 @MetaMask/core-platform (1 files, +0 -2)

• 📁 ui/
  • 📁 components/
    • 📁 app/
      • 📁 metamask-template-renderer/
        • 📄 safe-component-list.js +0 -2

[metamaskbot]

📊 Page Load Benchmark Results

Current Commit: 2fcced1 | Date: 10/14/2025

📄 Localhost MetaMask Test Dapp

Samples: 100

Summary

• pageLoadTime-> current mean value: 1.02s (±72ms) 🟡 | historical mean value: 1.05s ⬇️ (historical data)
• domContentLoaded-> current mean value: 720ms (±80ms) 🟢 | historical mean value: 738ms ⬇️ (historical data)
• firstContentfulPaint-> current mean value: 85ms (±121ms) 🟢 | historical mean value: 77ms ⬆️ (historical data)

📈 Detailed Results

Metric	Mean	Std Dev	Min	Max	P95	P99
pageLoadTime	1.02s	72ms	971ms	1.33s	1.26s	1.33s
domContentLoaded	720ms	80ms	668ms	1.22s	935ms	1.22s
firstPaint	85ms	121ms	56ms	1.29s	84ms	1.29s
firstContentfulPaint	85ms	121ms	56ms	1.29s	84ms	1.29s
largestContentfulPaint	0ms	0ms	0ms	0ms	0ms	0ms

---

Results generated automatically by MetaMask CI

[metamaskbot]

Builds ready [2fcced1]

• builds: chrome, firefox
• builds (beta): chrome, firefox
• builds (flask): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• bundle size: Bundle Size Stats
• user-actions-benchmark: User Actions Stats
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6, 7, 8
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13
  • ui: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
  • content-script: 0
  • offscreen: 0

UI Startup Metrics (1201 ± 58 ms)

Platform	BuildType	Page	Metric	Mean (ms)	Min (ms)	Max (ms)	Std Dev (ms)	P 75 (ms)	P 95 (ms)
Chrome	Browserify	Home	uiStartup	1201	1096	1514	58	1233	1311
			load	1036	950	1357	55	1062	1130
			domContentLoaded	1029	942	1354	55	1055	1124
			domInteractive	17	13	53	6	16	35
			firstPaint	738	159	1157	398	1051	1093
			backgroundConnect	251	236	321	10	254	263
			firstReactRender	26	18	46	6	29	42
			getState	13	5	58	9	14	31
			initialActions	4	0	20	5	5	18
			loadScripts	785	707	1108	54	814	873
			setupStore	9	5	31	4	9	14
	Webpack	Home	uiStartup	806	698	1003	59	821	930
			load	618	576	834	52	629	742
			domContentLoaded	611	571	824	51	622	736
			domInteractive	15	11	54	8	13	38
			firstPaint	190	55	827	183	191	664
			backgroundConnect	20	10	41	6	25	30
			firstReactRender	27	17	86	9	31	33
			getState	8	3	14	2	10	12
			initialActions	2	0	8	2	3	5
			loadScripts	608	569	814	49	620	726
			setupStore	8	4	18	2	9	11
Firefox	Browserify	Home	uiStartup	1480	1238	1967	156	1529	1838
			load	1250	1077	1620	99	1316	1430
			domContentLoaded	1250	1077	1619	99	1316	1430
			domInteractive	101	36	349	53	101	229
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	32	19	100	13	35	61
			firstReactRender	32	26	65	6	33	40
			getState	9	3	142	16	6	32
			initialActions	7	0	206	26	2	14
			loadScripts	1226	1062	1537	94	1287	1398
			setupStore	14	4	221	30	7	65
	Webpack	Home	uiStartup	1531	1300	2297	137	1582	1787
			load	1328	1153	1699	91	1361	1488
			domContentLoaded	1328	1153	1699	91	1360	1487
			domInteractive	94	30	365	53	100	174
			firstPaint	NaN	NaN	NaN	NaN	NaN	NaN
			backgroundConnect	32	17	126	19	34	84
			firstReactRender	39	27	102	17	38	77
			getState	6	3	38	5	5	12
			initialActions	3	0	62	9	2	13
			loadScripts	1304	1137	1604	84	1338	1473
			setupStore	11	4	95	15	6	47

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 58 Bytes (0%)
• ui: -1.49 KiB (-0.02%)
• common: 10 Bytes (0%)