Remove some as umknown as X usages (#2067)

Author: charisk

extensions/ql-vscode/src/stories/variant-analysis/RepoRow.stories.tsx

@@ -124,15 +124,15 @@ InterpretedResults.args = {
   resultCount: 198,
   interpretedResults: analysesResults.analysesResults.find(
     (v) => v.nwo === "facebook/create-react-app",
-  )?.interpretedResults as unknown as AnalysisAlert[],
+  )?.interpretedResults as AnalysisAlert[],
 };
 
 export const RawResults = Template.bind({});
 RawResults.args = {
   ...InterpretedResults.args,
   interpretedResults: undefined,
   resultCount: 1,
-  rawResults: rawResults as unknown as AnalysisRawResults,
+  rawResults: rawResults as AnalysisRawResults,
 };
 
 export const SkippedOnlyFullName = Template.bind({});

extensions/ql-vscode/src/stories/variant-analysis/VariantAnalysisAnalyzedRepos.stories.tsx

@@ -38,7 +38,7 @@ const interpretedResultsForRepo = (
   nwo: string,
 ): AnalysisAlert[] | undefined => {
   return analysesResults.analysesResults.find((v) => v.nwo === nwo)
-    ?.interpretedResults as unknown as AnalysisAlert[];
+    ?.interpretedResults as AnalysisAlert[];
 };
 
 export const Example = Template.bind({});

extensions/ql-vscode/src/view/common/CodePaths/CodeFlowsDropdown.tsx

@@ -31,7 +31,7 @@ export const CodeFlowsDropdown = ({
   return (
     <VSCodeDropdown
       onChange={
-        handleChange as unknown as ((e: Event) => unknown) &
+        handleChange as ((e: Event) => unknown) &
           React.FormEventHandler<HTMLElement>
       }
     >