Remove deprecated protoc-gen-connect-web plugin (#717)

Makefile

@@ -63,12 +63,6 @@ $(BUILD)/protoc-gen-connect-es: node_modules tsconfig.base.json packages/protoc-
 	@mkdir -p $(@D)
 	@touch $(@)
 
-$(BUILD)/protoc-gen-connect-web: node_modules tsconfig.base.json packages/protoc-gen-connect-web/tsconfig.json $(shell find packages/protoc-gen-connect-web/src -name '*.ts')
-	npm run -w packages/protoc-gen-connect-web clean
-	npm run -w packages/protoc-gen-connect-web build
-	@mkdir -p $(@D)
-	@touch $(@)
-
 $(BUILD)/connect: $(GEN)/connect node_modules tsconfig.base.json packages/connect/tsconfig.json $(shell find packages/connect/src -name '*.ts') packages/connect/*.js
 	npm run -w packages/connect clean
 	npm run -w packages/connect build
@@ -167,7 +161,7 @@ clean: crosstestserverstop ## Delete build artifacts and installed dependencies
 	git clean -Xdf
 
 .PHONY: build
-build: $(BUILD)/connect $(BUILD)/connect-web $(BUILD)/connect-node $(BUILD)/connect-fastify $(BUILD)/connect-express $(BUILD)/connect-next $(BUILD)/protoc-gen-connect-es $(BUILD)/protoc-gen-connect-web $(BUILD)/example ## Build
+build: $(BUILD)/connect $(BUILD)/connect-web $(BUILD)/connect-node $(BUILD)/connect-fastify $(BUILD)/connect-express $(BUILD)/connect-next $(BUILD)/protoc-gen-connect-es $(BUILD)/example ## Build
 
 .PHONY: test
 test: testconnectpackage testconnectnodepackage testnode testwebnode testwebbrowser ## Run all tests, except browserstack
@@ -264,7 +258,6 @@ release: all ## Release npm packages
 		--workspace packages/connect-next \
 		--workspace packages/connect \
 		--workspace packages/protoc-gen-connect-es \
-		--workspace packages/protoc-gen-connect-web \
 
 .PHONY: crosstestserverstop
 crosstestserverstop: