Avoid switching GC mode in COM's HasValidTarget (#62066)

* Avoid switching GC mode in COM's HasValidTarget

Co-authored-by: Jan Kotas <[email protected]>

Author: am11

src/coreclr/vm/interoplibinterface_comwrappers.cpp

@@ -1169,11 +1169,7 @@ namespace InteropLibImports
         bool isValid = false;
         ::OBJECTHANDLE objectHandle = static_cast<::OBJECTHANDLE>(handle);
 
-        {
-            // Switch to cooperative mode so the handle can be safely inspected.
-            GCX_COOP_THREAD_EXISTS(GET_THREAD());
-            isValid = ObjectFromHandle(objectHandle) != NULL;
-        }
+        isValid = ObjectHandleIsNull(objectHandle) != FALSE;
 
         return isValid;
     }