Remove deprecated CircleCrop constructor

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=178663970

library/src/main/java/com/bumptech/glide/load/resource/bitmap/CircleCrop.java

@@ -1,6 +1,5 @@
 package com.bumptech.glide.load.resource.bitmap;
 
-import android.content.Context;
 import android.graphics.Bitmap;
 import android.support.annotation.NonNull;
 import com.bumptech.glide.load.engine.bitmap_recycle.BitmapPool;
@@ -19,19 +18,6 @@ public class CircleCrop extends BitmapTransformation {
   private static final String ID = "com.bumptech.glide.load.resource.bitmap.CircleCrop." + VERSION;
   private static final byte[] ID_BYTES = ID.getBytes(CHARSET);
 
-  public CircleCrop() {
-    // Intentionally empty.
-  }
-
-  /**
-   * @deprecated Use {@link #CircleCrop()}.
-   * @param context Ignored.
-   */
-  @Deprecated
-  public CircleCrop(@SuppressWarnings("unused") Context context) {
-    this();
-  }
-
   // Bitmap doesn't implement equals, so == and .equals are equivalent here.
   @SuppressWarnings("PMD.CompareObjectsWithEquals")
   @Override