Remove an unneeded parameter from CompilerHost constructor.

BREAKING CHANGE:
If you use the internal API of tsc_wrapped you need to update the CompilerHost constructor calls.

PiperOrigin-RevId: 221634093
diff --git a/internal/tsc_wrapped/compiler_host.ts b/internal/tsc_wrapped/compiler_host.ts
index 3f7390d..86115ba 100644
--- a/internal/tsc_wrapped/compiler_host.ts
+++ b/internal/tsc_wrapped/compiler_host.ts
@@ -83,13 +83,13 @@
   provideExternalModuleDtsNamespace: boolean;
   options: BazelTsOptions;
   host: ts.ModuleResolutionHost = this;
+  private allowActionInputReads = true;
 
 
   constructor(
       public inputFiles: string[], options: ts.CompilerOptions,
       readonly bazelOpts: BazelOptions, private delegate: ts.CompilerHost,
       private fileLoader: FileLoader,
-      private readonly allowActionInputReads: boolean,
       private moduleResolver: ModuleResolver = ts.resolveModuleName) {
     this.options = narrowTsOptions(options);
     this.relativeRoots =
@@ -110,8 +110,7 @@
     // include global typings from node_modules/@types
     // see getAutomaticTypeDirectiveNames in
     // TypeScript:src/compiler/moduleNameResolver
-    // Do this for Bazel only - under Blaze we don't support such discovery.
-    if (allowActionInputReads && delegate && delegate.directoryExists) {
+    if (this.allowActionInputReads && delegate && delegate.directoryExists) {
       this.directoryExists = delegate.directoryExists.bind(delegate);
     }
 
diff --git a/internal/tsc_wrapped/tsc_wrapped.ts b/internal/tsc_wrapped/tsc_wrapped.ts
index b430874..768127e 100644
--- a/internal/tsc_wrapped/tsc_wrapped.ts
+++ b/internal/tsc_wrapped/tsc_wrapped.ts
@@ -188,10 +188,8 @@
   const compilerHostDelegate =
       ts.createCompilerHost({target: ts.ScriptTarget.ES5});
 
-  const allowActionInputReads = true;
   const compilerHost = new CompilerHost(
-      files, options, bazelOpts, compilerHostDelegate, fileLoader,
-      allowActionInputReads);
+      files, options, bazelOpts, compilerHostDelegate, fileLoader);
 
 
   const oldProgram = cache.getProgram(bazelOpts.target);