diff --git a/cli/tsc/00_typescript.js b/cli/tsc/00_typescript.js
index 7e7181b6b2..ee917d6ac7 100644
--- a/cli/tsc/00_typescript.js
+++ b/cli/tsc/00_typescript.js
@@ -125170,14 +125170,6 @@ function changeCompilerHostLikeToUseCache(host, toPath3, getSourceFile) {
     }
     return sourceFile;
   } : void 0;
-  host.fileExists = (fileName) => {
-    const key = toPath3(fileName);
-    const value = fileExistsCache.get(key);
-    if (value !== void 0) return value;
-    const newValue = originalFileExists.call(host, fileName);
-    fileExistsCache.set(key, !!newValue);
-    return newValue;
-  };
   if (originalWriteFile) {
     host.writeFile = (fileName, data, ...rest) => {
       const key = toPath3(fileName);
@@ -165768,10 +165760,6 @@ function getDefaultCommitCharacters(isNewIdentifierLocation) {
   return allCommitCharacters;
 }
 function getCompletionsAtPosition(host, program, log, sourceFile, position, preferences, triggerCharacter, completionKind, cancellationToken, formatContext, includeSymbol = false) {
-  return spanned("Tsc::getCompletionsAtPosition", () => getCompletionsAtPositionInner(host, program, log, sourceFile, position, preferences, triggerCharacter, completionKind, cancellationToken, formatContext, includeSymbol));
-}
-
-function getCompletionsAtPositionInner(host, program, log, sourceFile, position, preferences, triggerCharacter, completionKind, cancellationToken, formatContext, includeSymbol = false) {
   var _a;
   const { previousToken } = getRelevantTokens(position, sourceFile);
   if (triggerCharacter && !isInString(sourceFile, position, previousToken) && !isValidTrigger(sourceFile, triggerCharacter, previousToken, position)) {
diff --git a/cli/tsc/97_ts_host.js b/cli/tsc/97_ts_host.js
index cabcc1ffac..4705d989ef 100644
--- a/cli/tsc/97_ts_host.js
+++ b/cli/tsc/97_ts_host.js
@@ -732,6 +732,12 @@ const hostImpl = {
     }
     return scriptSnapshot;
   },
+  getNearestAncestorDirectoryWithPackageJson() {
+    // always return `undefined` in order to short-circuit
+    // a codepath in the TypeScript compiler that always
+    // ends up returning `undefined` in Deno anyway
+    return undefined;
+  },
 };
 
 // these host methods are super noisy (often thousands of calls per TSC request)