Remove unecessary exported symbols from libhwui.so

Test: compiles and links
Bug: 150782769
Change-Id: Ib49c1bf914b6bfaad1fb29371115df7c9eec08d2
diff --git a/libs/hwui/utils/Blur.h b/libs/hwui/utils/Blur.h
index d6b41b8..6b822f0 100644
--- a/libs/hwui/utils/Blur.h
+++ b/libs/hwui/utils/Blur.h
@@ -26,9 +26,9 @@
 class Blur {
 public:
     // If radius > 0, return the corresponding sigma, else return 0
-    ANDROID_API static float convertRadiusToSigma(float radius);
+    static float convertRadiusToSigma(float radius);
     // If sigma > 0.5, return the corresponding radius, else return 0
-    ANDROID_API static float convertSigmaToRadius(float sigma);
+    static float convertSigmaToRadius(float sigma);
     // If the original radius was on an integer boundary then after the sigma to
     // radius conversion a small rounding error may be introduced. This function
     // accounts for that error and snaps to the appropriate integer boundary.
diff --git a/libs/hwui/utils/Color.h b/libs/hwui/utils/Color.h
index a29b285..71ed683 100644
--- a/libs/hwui/utils/Color.h
+++ b/libs/hwui/utils/Color.h
@@ -91,7 +91,7 @@
 }
 
 #ifdef __ANDROID__ // Layoutlib does not support hardware buffers or native windows
-ANDROID_API SkImageInfo ANativeWindowToImageInfo(const ANativeWindow_Buffer& buffer,
+SkImageInfo ANativeWindowToImageInfo(const ANativeWindow_Buffer& buffer,
                                                  sk_sp<SkColorSpace> colorSpace);
 
 SkImageInfo BufferDescriptionToImageInfo(const AHardwareBuffer_Desc& bufferDesc,
diff --git a/libs/hwui/utils/VectorDrawableUtils.h b/libs/hwui/utils/VectorDrawableUtils.h
index 4be48fb..4f63959 100644
--- a/libs/hwui/utils/VectorDrawableUtils.h
+++ b/libs/hwui/utils/VectorDrawableUtils.h
@@ -28,10 +28,10 @@
 
 class VectorDrawableUtils {
 public:
-    ANDROID_API static bool canMorph(const PathData& morphFrom, const PathData& morphTo);
-    ANDROID_API static bool interpolatePathData(PathData* outData, const PathData& morphFrom,
+    static bool canMorph(const PathData& morphFrom, const PathData& morphTo);
+    static bool interpolatePathData(PathData* outData, const PathData& morphFrom,
                                                 const PathData& morphTo, float fraction);
-    ANDROID_API static void verbsToPath(SkPath* outPath, const PathData& data);
+    static void verbsToPath(SkPath* outPath, const PathData& data);
     static void interpolatePaths(PathData* outPathData, const PathData& from, const PathData& to,
                                  float fraction);
 };