Remove deprecated protoc-gen-connect-web plugin

[smaye81]

This removes the deprecated protoc-gen-connect-web plugin from the repository. It is no longer supported and has been deprecated on npm for some time now.

If you are still depending on this package, please switch to use @bufbuild/protoc-gen-connect-es, which is the official Connect-ES plugin. The generated code is actually exactly the same, so you should not experience any issues updating

To make the switch:

npm remove @bufbuild/protoc-gen-connect-web
npm install @bufbuild/protoc-gen-connect-es

Update your buf.gen.yaml:

version: v1
plugins:
  - plugin: es
    out: src/gen
-  - plugin: connect-web
+  - plugin: connect-es
    out: src/gen

And your import paths:

- import { ElizaService } from "gen/eliza_connectweb";
+ import { ElizaService } from "gen/eliza_connect";