remove leak canary import

Author: yjfnypeu

app/src/main/java/org/lzh/framework/updateplugin/MyApplication.java

@@ -1,12 +1,8 @@
 package org.lzh.framework.updateplugin;
 
 import android.app.Application;
-import android.content.Context;
 import android.widget.Toast;
 
-import com.squareup.leakcanary.LeakCanary;
-import com.squareup.leakcanary.RefWatcher;
-
 import org.lzh.framework.updatepluginlib.UpdateConfig;
 import org.lzh.framework.updatepluginlib.callback.EmptyCheckCB;
 import org.lzh.framework.updatepluginlib.callback.EmptyDownloadCB;