Add lint rule for unused imports, and fix (#4476)

.eslintrc.yml

@@ -9,6 +9,7 @@ plugins:
   - prettier
   - unicorn
   - '@typescript-eslint'
+  - unused-imports
 extends:
   - ./.eslint-license-header.yml
   - eslint:recommended

lib/base-compiler.ts

@@ -52,7 +52,7 @@ import {CompilerOutputOptions, ParseFiltersAndOutputOptions} from '../types/feat
 import {Language} from '../types/languages.interfaces';
 import {Library, LibraryVersion, SelectedLibraryVersion} from '../types/libraries/libraries.interfaces';
 import {ResultLine} from '../types/resultline/resultline.interfaces';
-import {ToolResult, ToolTypeKey} from '../types/tool.interfaces';
+import {Tool, ToolResult, ToolTypeKey} from '../types/tool.interfaces';
 
 import {BuildEnvSetupBase, getBuildEnvTypeByKey} from './buildenvsetup';
 import {BuildEnvDownloadInfo} from './buildenvsetup/buildenv.interfaces';

lib/tooling/base-tool.ts

@@ -31,7 +31,7 @@ import {ExecutionOptions} from '../../types/compilation/compilation.interfaces';
 import {UnprocessedExecResult} from '../../types/execution/execution.interfaces';
 import {Library, SelectedLibraryVersion} from '../../types/libraries/libraries.interfaces';
 import {ResultLine} from '../../types/resultline/resultline.interfaces';
-import {ToolInfo, ToolResult, ToolTypeKey} from '../../types/tool.interfaces';
+import {ToolInfo, ToolResult} from '../../types/tool.interfaces';
 import * as exec from '../exec';
 import {logger} from '../logger';
 import {parseOutput} from '../utils';

package.json

@@ -130,6 +130,7 @@
     "eslint-plugin-requirejs": "^4.0.1",
     "eslint-plugin-sonarjs": "^0.11.0",
     "eslint-plugin-unicorn": "^40.1.0",
+    "eslint-plugin-unused-imports": "^2.0.0",
     "file-loader": "^6.2.0",
     "lint-staged": "^13.0.3",
     "mini-css-extract-plugin": "^2.4.5",