build: clean up redundant exclude field from tsconfig-build.json

The exclude field has been removed from `tsconfig-build.json` as it is redundant. This configuration is used by Bazel, which already specifies the input files explicitly, making the exclude field unnecessary. This change simplifies the configuration without impacting the build process.

(cherry picked from commit 4aa95bd)

Author: alan-agius4

Diff for: tsconfig-build.json

@@ -2,26 +2,5 @@
   "extends": "./tsconfig.json",
   "compilerOptions": {
     "types": ["node"]
-  },
-  "exclude": [
-    "packages/angular_devkit/build_angular/src/bazel-babel.d.ts",
-    "bazel-out/**/*",
-    "dist/**/*",
-    "dist-schema/**",
-    "goldens/**/*",
-    "**/node_modules/**/*",
-    "**/third_party/**/*",
-    "packages/angular_devkit/schematics_cli/blank/*-files/**/*",
-    "packages/angular_devkit/schematics_cli/schematic/files/**/*",
-    "packages/angular_devkit/build_angular/src/*/tests/**/*",
-    "packages/angular_devkit/build_angular/src/builders/*/tests/**/*",
-    "packages/angular_devkit/build_angular/src/testing/**/*",
-    "packages/angular_devkit/*/test/**/*",
-    "packages/schematics/*/*/*files/**/*",
-    "tests/**/*",
-    "tools/**/*",
-    ".ng-dev/**/*",
-    "**/*_spec.ts",
-    "scripts/**/*.mts"
-  ]
+  }
 }