Delete all ro.hwui.* props

Remove all ro.hwui.* tuning props and instead
calculate them from the screen resolution.

Or just hardcode them to what all devices
were hardcoding them to anyway.

Bug: 63741221
Test: Check cache size results on sailfish

Change-Id: I8b0d210572a246f4fefb076935cf5156a70c274c
diff --git a/libs/hwui/GradientCache.h b/libs/hwui/GradientCache.h
index f299a40..d95589c 100644
--- a/libs/hwui/GradientCache.h
+++ b/libs/hwui/GradientCache.h
@@ -105,7 +105,7 @@
  */
 class GradientCache: public OnEntryRemoved<GradientCacheEntry, Texture*> {
 public:
-    explicit GradientCache(Extensions& extensions);
+    explicit GradientCache(const Extensions& extensions);
     ~GradientCache();
 
     /**