Remove unused "nosdcard" variants of several strings.

chrome/android/java/strings/android_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- android_chrome_strings.grd contains strings for Chrome for Android.
 
 FAQ:
   - How do I add, change, or remove a string?
       Just update this file.
   - Translations will happen automatically??
       Yes, indeed. Just add your string before the branch point and
       make the description good.
@@ skipping 1402 matching lines @@
         If you're seeing this frequently, try these <ph name="BEGIN_LINK">&lt;link&gt;</ph>suggestions<ph name="END_LINK">&lt;/link&gt;</ph>.
       </message>
 
       <!-- Fullscreen -->
       <message name="IDS_FULLSCREEN_API_NOTIFICATION" desc="Notification message when a site has entered fullscreen and the directions of how to exit.">
         This site has gone fullscreen.
 Hit the back button to exit.
       </message>
 
       <!-- Download UI -->
-      <message name="IDS_DOWNLOAD_NO_SDCARD_DLG_TITLE_product_nosdcard" desc="Dialog title [CHAR LIMIT=25]">
-        USB storage unavailable
-      </message>
-      <message name="IDS_DOWNLOAD_NO_SDCARD_DLG_TITLE_product_default" desc="Dialog title [CHAR LIMIT=25]">
+      <message name="IDS_DOWNLOAD_NO_SDCARD_DLG_TITLE" desc="Dialog title [CHAR LIMIT=25]">
         No SD card
       </message>
-      <message name="IDS_DOWNLOAD_SDCARD_BUSY_DLG_TITLE_product_nosdcard" desc="Title for a dialog informing the user that the SD card used for external storage is busy so they cannot download anything [CHAR LIMIT=30]">
-        USB storage unavailable
-      </message>
-      <message name="IDS_DOWNLOAD_SDCARD_BUSY_DLG_TITLE_product_default" desc="Title for a dialog informing the user that the SD card used for external storage is busy so they cannot download anything [CHAR-LIMIT=30]">
+      <message name="IDS_DOWNLOAD_SDCARD_BUSY_DLG_TITLE" desc="Title for a dialog informing the user that the SD card used for external storage is busy so they cannot download anything [CHAR-LIMIT=30]">
         SD card unavailable
       </message>
       <message name="IDS_DOWNLOAD_NOTIFICATION_FAILED" desc="Download notification to be displayed when a download fails.">
         Download failed.
       </message>
       <message name="IDS_CANNOT_ADD_DOWNLOADED_ITEM_TO_MANAGER" desc="Toast for a download which has completed but cannot be added to the download manager">
         Failed to add downloaded item to the download manager.
       </message>
-      <message name="IDS_CANNOT_CREATE_DOWNLOAD_DIRECTORY_TITLE_product_nosdcard" desc="Message for a dialog informing the user that download directory cannot be created on external storage [CHAR LIMIT=75]">
-        Cannot create download directory on USB storage.
-      </message>
-      <message name="IDS_CANNOT_CREATE_DOWNLOAD_DIRECTORY_TITLE_product_default" desc="Message for a dialog informing the user that download directory cannot be created on external storage [CHAR LIMIT=75]">
+      <message name="IDS_CANNOT_CREATE_DOWNLOAD_DIRECTORY_TITLE" desc="Message for a dialog informing the user that download directory cannot be created on external storage [CHAR LIMIT=75]">
         Cannot create download directory on SD card.
       </message>
       <message name="IDS_CANNOT_DOWNLOAD_HTTP_OR_HTTPS" desc="Toast for a download which cannot begin because the URL is not http or https">
         Can only download http or https URLs
       </message>
       <message name="IDS_CANNOT_DOWNLOAD_GENERIC" desc="Toast for a generic download failure">
         Failed to start download
       </message>
       <message name="IDS_DOWNLOAD_PENDING" desc="Message in the list of items which have received download requests telling their status. This message states that the download has not yet begun [CHAR LIMIT=30]">
         Downloading…
@@ skipping 786 matching lines @@
       </message>
       <message name="IDS_HELP_CONTEXT_USAGE_REPORTS" translateable="false">
         send_crash_report
       </message>
       <message name="IDS_HELP_CONTEXT_SAD_TAB" translateable="false">
         mobile_awsnap
       </message>
     </messages>
   </release>
 </grit>