Workaround to avoid polygon flashing DO NOT MERGE

b/15539571

Temporarily disables caching of tessellation.

Change-Id: If014b8c40664711aef761eec606d28aff1859b14
diff --git a/libs/hwui/TessellationCache.cpp b/libs/hwui/TessellationCache.cpp
index 79fe4d3..e6bc873 100644
--- a/libs/hwui/TessellationCache.cpp
+++ b/libs/hwui/TessellationCache.cpp
@@ -350,11 +350,12 @@
 
 
 void TessellationCache::trim() {
-    uint32_t size = getSize();
-    while (size > mMaxSize) {
-        size -= mCache.peekOldestValue()->getSize();
-        mCache.removeOldest();
-    }
+    // uint32_t size = getSize();
+    // while (size > mMaxSize) {
+    //     size -= mCache.peekOldestValue()->getSize();
+    //     mCache.removeOldest();
+    // }
+    mCache.clear(); // Workaround caching tessellation corruption
     mShadowCache.clear();
 }