Revert "Use UiEvent for constants inside StatsLogManager"

This reverts commit 6b99a7d3977e62c2555e8a2decbd2769d92179a1.

Reason for revert: Launcher3 AOSP cannot link to uieventloggerlib because it's private API

Change-Id: Id652b8a4cba54b97d1d8b8644c2939903cc0e88a
diff --git a/src/com/android/launcher3/BaseDraggingActivity.java b/src/com/android/launcher3/BaseDraggingActivity.java
index 4732e73..6fa3c28 100644
--- a/src/com/android/launcher3/BaseDraggingActivity.java
+++ b/src/com/android/launcher3/BaseDraggingActivity.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3;
 
-import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_APP_LAUNCH_TAP;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.APP_LAUNCH_TAP;
 import static com.android.launcher3.util.DefaultDisplay.CHANGE_ROTATION;
 
 import android.app.ActivityOptions;
@@ -182,7 +182,7 @@
                         sourceContainer);
             }
             getUserEventDispatcher().logAppLaunch(v, intent, user);
-            getStatsLogManager().log(LAUNCHER_APP_LAUNCH_TAP, item.buildProto(null, null));
+            getStatsLogManager().log(APP_LAUNCH_TAP, item.buildProto(null, null));
             return true;
         } catch (NullPointerException|ActivityNotFoundException|SecurityException e) {
             Toast.makeText(this, R.string.activity_not_found, Toast.LENGTH_SHORT).show();