Revert "Use rounded image view for Answer and Entity suggestions"

This reverts commit a751329d.

Reason for revert: RoundedCornerImageView is missing a lot of functionality, including scaleType, support for bitmaps with custom shaders or tinted drawables.

Original change's description:
> Use rounded image view for Answer and Entity suggestions
> 
> This change updates the looks of the Answer- and Entity suggestions to
> match the design:
> 
> http://docs/presentation/d/1uB8QFlhYqQetxNgJxucpKn-Eolx7CiqL88jGES_sjFk?pli=1#slide=id.g45b058cd36_0_146
> http://docs/presentation/d/1uB8QFlhYqQetxNgJxucpKn-Eolx7CiqL88jGES_sjFk?pli=1#slide=id.g3ce78ec162_0_50
> 
> Bug: 930349
> Change-Id: I7fa62d6349ee7b30b44a4c28a4a0dfd82e1f33ba
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1632902
> Commit-Queue: Ender <ender@google.com>
> Reviewed-by: Matthew Jones <mdjones@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#664510}

TBR=mdjones@chromium.org,ender@google.com

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 930349
Change-Id: Ia0c3bbc04fabaf3bbac21b73504e90a3e85798ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1638921
Commit-Queue: Ender <ender@google.com>
Commit-Queue: Matthew Jones <mdjones@chromium.org>
Reviewed-by: Matthew Jones <mdjones@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665274}

chrome/android/java/res/layout/omnibox_answer_suggestion.xml

@@ -22,8 +22,7 @@
         android:layout_toStartOf="@+id/omnibox_answer_refine_icon"
         android:layout_width="0dp">
 
-        <org.chromium.ui.widget.RoundedCornerImageView
-            style="@style/RoundedCornerImageViewDefault"
+        <ImageView
             android:contentDescription="@null"
             android:id="@+id/omnibox_answer_icon"
             android:layout_centerVertical="true"

chrome/android/java/res/layout/omnibox_entity_suggestion.xml

@@ -20,15 +20,14 @@
         android:focusable="true"
         android:paddingVertical="10dp">
 
-    <org.chromium.ui.widget.RoundedCornerImageView
-            style="@style/RoundedCornerImageViewDefault"
+        <ImageView
             android:id="@+id/omnibox_entity_image"
             android:layout_width="@dimen/omnibox_suggestion_entity_icon_size"
             android:layout_height="@dimen/omnibox_suggestion_entity_icon_size"
             android:layout_centerVertical="true"
             android:layout_marginEnd="8dp"
             android:layout_marginStart="@dimen/omnibox_suggestion_icon_margin_start"
-            android:contentDescription="@null"/>
+            android:contentDescription="@null" />
 
         <TextView
             android:id="@+id/omnibox_entity_subject_text"

chrome/android/java/res/values-v17/styles.xml

@@ -3,8 +3,7 @@
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file. -->
 
-<resources
-  xmlns:tools="http://schemas.android.com/tools">
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Q: Why put style resources under values-v17/ ?
          A: Problem:
             1. paddingStart causes a crash on Galaxy Tab&Note b/8351339.
@@ -950,10 +949,4 @@
         <item name="android:layout_height">@dimen/omnibox_suggestion_edit_url_min_height</item>
         <item name="tint">@color/default_icon_color</item>
     </style>
-    <style name="RoundedCornerImageViewDefault">
-      <item name="cornerRadiusTopStart">@dimen/default_rounded_corner_radius</item>
-      <item name="cornerRadiusTopEnd">@dimen/default_rounded_corner_radius</item>
-      <item name="cornerRadiusBottomStart">@dimen/default_rounded_corner_radius</item>
-      <item name="cornerRadiusBottomEnd">@dimen/default_rounded_corner_radius</item>
-    </style>
 </resources>