do not include unknown annotations in override (IDEA-109422)

java/java-tests/testData/codeInsight/overrideImplement/afterSkipUnknownAnnotations.java

@@ -0,0 +1,9 @@
+interface A {
+    void f(@Unknown1 @Unknown2 String s, @Unknown3 s3);
+}
+class B implements A {
+    @Override
+    public void f(String s) {
+        
+    }
+}

java/java-tests/testData/codeInsight/overrideImplement/beforeSkipUnknownAnnotations.java

@@ -0,0 +1,6 @@
+interface A {
+    void f(@Unknown1 @Unknown2 String s, @Unknown3 s3);
+}
+class B implements A {
+    <caret>
+}