refactor proximity info

Change-Id: I1e37ca655b4c1ba91a04aaf5aea8267cd46b4f43
diff --git a/native/jni/src/proximity_info.cpp b/native/jni/src/proximity_info.cpp
index 3669fd3..c563b07 100644
--- a/native/jni/src/proximity_info.cpp
+++ b/native/jni/src/proximity_info.cpp
@@ -164,7 +164,7 @@
     for (int i = 0; i < KEY_COUNT; i++) {
         mKeyKeyDistancesG[i][i] = 0;
         for (int j = i + 1; j < KEY_COUNT; j++) {
-            mKeyKeyDistancesG[i][j] = ProximityInfoUtils::getDistanceInt(
+            mKeyKeyDistancesG[i][j] = getDistanceInt(
                     mCenterXsG[i], mCenterYsG[i], mCenterXsG[j], mCenterYsG[j]);
             mKeyKeyDistancesG[j][i] = mKeyKeyDistancesG[i][j];
         }