message: refactor(compiler-cli): remove unused closureCompilerEnabled from NgtscProgram
  remove the NgtscProgram's private field closureCompilerEnabled as that
  is not being used in the class itself
  PR Close
diff: @@ -37,7 +37,6 @@ export class NgtscProgram implements api.Program {
  */
  private tsProgram: ts.Program;
  - private closureCompilerEnabled: boolean;
  private host: NgCompilerHost;
  private incrementalStrategy: TrackedIncrementalBuildStrategy;
  @@ -53,8 +52,6 @@ export class NgtscProgram implements api.Program {
  verifySupportedTypeScriptVersion();
  }
  - this.closureCompilerEnabled = !!options.annotateForClosureCompiler;
  -
  const reuseProgram = oldProgram?.compiler.getCurrentProgram();
  this.host = NgCompilerHost.wrap(delegateHost, rootNames, options, reuseProgram ?? null);
  