Remove MockGlobalStorage

extensions/ql-vscode/test/unit-tests/common/invocation-rate-limiter.test.ts

@@ -18,7 +18,7 @@ describe("Invocation rate limiter", () => {
     func: () => Promise<T>,
   ): InvocationRateLimiter<T> {
     return new InvocationRateLimiter(
-      new MockGlobalStorage(),
+      new MockMemento(),
       funcIdentifier,
       func,
       (s) => createDate(s),
@@ -54,12 +54,6 @@ describe("Invocation rate limiter", () => {
     }
   }
 
-  class MockGlobalStorage extends MockMemento {
-    public setKeysForSync(_keys: string[]): void {
-      return;
-    }
-  }
-
   it("initially invokes function", async () => {
     let numTimesFuncCalled = 0;
     const invocationRateLimiter = createInvocationRateLimiter(