Remove any annotations

Author: jack-williams

src/compiler/checker.ts

@@ -12348,12 +12348,12 @@ namespace ts {
             for (const clause of switchStatement.caseBlock.clauses) {
                 if (clause.kind === SyntaxKind.CaseClause) {
                     if (clause.expression.kind === SyntaxKind.StringLiteral) {
-                        witnesses.push((clause.expression as StringLiteral).text as any);
+                        witnesses.push((clause.expression as StringLiteral).text);
                         continue;
                     }
                     return emptyArray;
                 }
-                witnesses.push(/*explicitDefaultStatement*/ undefined as any);
+                witnesses.push(/*explicitDefaultStatement*/ undefined);
             }
             return witnesses;
         }