Delete unused imports

app/src/main/java/chat/rocket/android/helper/Avatar.java

@@ -8,13 +8,12 @@ import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.support.graphics.drawable.VectorDrawableCompat;
 import chat.rocket.android.R;
-import com.amulyakhare.textdrawable.TextDrawable;
-
-import java.io.UnsupportedEncodingException;
-import java.net.URLEncoder;
 import chat.rocket.android.log.RCLog;
 import chat.rocket.android.widget.AbsoluteUrl;
 import chat.rocket.android.widget.RocketChatAvatar;
+import com.amulyakhare.textdrawable.TextDrawable;
+import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
 
 /**
  * Helper for rendering user avatar image.

app/src/main/java/chat/rocket/android/layouthelper/chatroom/AbstractMessageViewHolder.java

@@ -3,13 +3,12 @@ package chat.rocket.android.layouthelper.chatroom;
 import android.support.annotation.Nullable;
 import android.view.View;
 import android.widget.TextView;
-
 import chat.rocket.android.R;
 import chat.rocket.android.helper.DateTime;
 import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.widget.AbsoluteUrl;
-import chat.rocket.core.SyncState;
 import chat.rocket.android.widget.RocketChatAvatar;
+import chat.rocket.core.SyncState;
 
 public abstract class AbstractMessageViewHolder extends ModelViewHolder<PairedMessage> {
   protected final RocketChatAvatar avatar;

app/src/main/java/chat/rocket/android/renderer/MessageRenderer.java

 package chat.rocket.android.renderer;
 
 import android.content.Context;
-import android.support.graphics.drawable.VectorDrawableCompat;
 import android.view.View;
 import android.widget.TextView;
-
-import java.util.List;
 import chat.rocket.android.R;
 import chat.rocket.android.helper.Avatar;
 import chat.rocket.android.helper.DateTime;
 import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.widget.AbsoluteUrl;
-import chat.rocket.core.SyncState;
-import chat.rocket.core.models.Attachment;
-import chat.rocket.core.models.Message;
 import chat.rocket.android.widget.RocketChatAvatar;
 import chat.rocket.android.widget.message.RocketChatMessageAttachmentsLayout;
 import chat.rocket.android.widget.message.RocketChatMessageLayout;
 import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout;
+import chat.rocket.core.SyncState;
+import chat.rocket.core.models.Attachment;
+import chat.rocket.core.models.Message;
 import chat.rocket.core.models.User;
 import chat.rocket.core.models.WebContent;
+import java.util.List;
 
 /**
  * Renderer for RealmMessage model.

rocket-chat-android-widgets/src/main/java/chat/rocket/android/widget/RocketChatAvatar.java

@@ -8,15 +8,11 @@ import android.os.Build;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.widget.FrameLayout;
-
 import com.facebook.drawee.backends.pipeline.Fresco;
 import com.facebook.drawee.generic.GenericDraweeHierarchy;
-import com.facebook.drawee.generic.GenericDraweeHierarchyBuilder;
 import com.facebook.drawee.interfaces.DraweeController;
 import com.facebook.drawee.view.SimpleDraweeView;
 
-import chat.rocket.android.widget.R;
-
 public class RocketChatAvatar extends FrameLayout {
 
   private SimpleDraweeView draweeView;