fix(compiler): revert #3194 (#3362)

Closes #3272

Author: ahnpnl

src/compiler/ts-compiler.ts

@@ -386,8 +386,6 @@ export class TsCompiler implements TsCompilerInstance {
     if (!hit) {
       // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
       this._fileVersionCache!.set(fileName, 1)
-      // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
-      this._fileContentCache!.set(fileName, contents)
       shouldIncrementProjectVersion = true
     } else {
       // eslint-disable-next-line @typescript-eslint/no-non-null-assertion