Remove unused pre-MD find bar assets from mac build.

These are not needed because the pre-MD find bar code was removed.

BUG=648281,522168
TBR=oshima@chromium.org

Review-Url: https://codereview.chromium.org/2571143002
Cr-Commit-Position: refs/heads/master@{#438692}

chrome/app/theme/theme_resources.grd

@@ -577,17 +577,6 @@
       <if expr="chromeos">
         <structure type="chrome_scaled_image" name="IDR_TECHNICAL_ERROR" file="cros/technical_error.png" />
       </if>
-      <if expr="is_macosx">
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_BOTTOM" file="common/textfield_bottom.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_BOTTOM_LEFT" file="common/textfield_bottom_left.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_BOTTOM_RIGHT" file="common/textfield_bottom_right.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_CENTER" file="common/textfield_center.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_LEFT" file="common/textfield_left.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_RIGHT" file="common/textfield_right.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_TOP" file="common/textfield_top.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_TOP_LEFT" file="common/textfield_top_left.png" />
-        <structure type="chrome_scaled_image" name="IDR_TEXTFIELD_TOP_RIGHT" file="common/textfield_top_right.png" />
-      </if>
       <structure type="chrome_scaled_image" name="IDR_THEME_BUTTON_BACKGROUND" file="notused.png" />
       <if expr="not use_ash">
         <structure type="chrome_scaled_image" name="IDR_THEME_FRAME" file="theme_frame.png" />