DeleteSwitchLabelFix: check again whether the whole branch should be removed when fix is actually applied

Fixes IDEA-200021 Red code after applying 'Fix all 'Constant conditions and exception' problems in the file' with multiple case labels

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/quickFix/deleteSwitchLabel/afterFixAll.java

@@ -0,0 +1,9 @@
+// "Fix all 'Constant conditions & exceptions' problems in file" "true"
+class Main {
+    void t() {
+        int i = 5;
+        switch(i) {
+            // Apply 'Fix all problems in the file'
+        }
+    }
+}