remove redundant casts when extract changed parameter type accordingly (IDEA-79743)

java/java-tests/testData/refactoring/extractMethod/RedundantCast.java

@@ -0,0 +1,6 @@
+class Test {
+    void foo () {
+        int a = 1;
+        <selection>System.out.println("" + (Object)a);</selection>
+    }
+}

java/java-tests/testData/refactoring/extractMethod/RedundantCast_after.java

@@ -0,0 +1,10 @@
+class Test {
+    void foo () {
+        int a = 1;
+        newMethod(a);
+    }
+
+    private void newMethod(Object a) {
+        System.out.println("" + a);
+    }
+}