SysAdmin: Removed external authentication map repair button from Users tab

lms/djangoapps/dashboard/decisions/0001-sysadmin-dashboard.rst

@@ -24,8 +24,7 @@ Decision
 --------
 
 The users tab provides Web based user management (create and delete user accounts), a listing of courses loaded,
-and user statistics. There is also a button to repair the external authentication map, a task relevant to open
-edX installations using Shibboleth and certificate-based authentication.
+and user statistics.
 
 The courses tabs manages adding/updating courses from git, deleting courses, and provides course listing information,
 including commit hash, date and author for course imported from git.

lms/templates/sysadmin_dashboard.html

@@ -97,12 +97,6 @@ textarea {
 	  </button>
     </p>
 
-    <p>
-    <button type="submit" name="action" value="repair_eamap" style="width: 350px;">
-	  ${_('Check and repair external authentication map')}
-	</button>
-    </p>
-
     <hr width="40%" style="align:left">
 	</form>
  %endif