[unit tests] IJPL-209375 Fix IconScaleTest.ideHiDpi

It was failing in some environments because the jreHiDPI
flag was set there.

GitOrigin-RevId: b90fc4f9a571be698020daf0a95663be63dbbffc

platform/platform-tests/testSrc/com/intellij/ui/scale/IconScaleTest.java

@@ -104,6 +104,7 @@ public class IconScaleTest extends BasePlatformTestCase {
   }
 
   public void ideHiDpi(float scale) throws MalformedURLException {
+    overrideJreHiDPIEnabled(false); // it'll be restored in tearDown
     // the system scale repeats the default user scale in IDE-HiDPI
     test(scale, scale);
   }