[clang-tidy] Remove broken test on Windows for readability-misleading-indentation.

Because Windows build uses by default `fdelayed-template-parsing` we cannot have a test
where we don't instantiate the template. Please see D72333.

Author: abpostelnicu

clang-tools-extra/test/clang-tidy/checkers/readability-misleading-indentation.cpp

@@ -168,17 +168,6 @@ void mustFailNonTemplate() {
   // CHECK-MESSAGES: :[[@LINE-2]]:5: warning: different indentation for 'if' and corresponding 'else' [readability-misleading-indentation]
 }
 
-template<bool b>
-void mustFailNoInsta() {
-  if constexpr (b) {
-    foo1();
-  }
-    else {
-      foo2();
-      // CHECK-MESSAGES: :[[@LINE-2]]:5: warning: different indentation for 'if' and corresponding 'else' [readability-misleading-indentation]
-  }
-}
-
 template<bool b>
 void mustPassNoInsta() {
   if constexpr (b) {