Remove leftovers of platformName and platformStatic in test data

Drop unnecessary imports, rename some tests

compiler/testData/compileJavaAgainstKotlin/jvmStatic/simpleObjectProperty.java

@@ -0,0 +1,10 @@
+package test;
+
+class Test {
+
+    public static void main(String[] args) {
+        A.getB();
+        A.getC(A.INSTANCE);
+    }
+
+}