Revert "Move student_account templates into app."

This reverts commit 4dc744b104.

lms/envs/common.py

@@ -1914,7 +1914,6 @@ INSTALLED_APPS = (
     'lms.djangoapps.grades.apps.GradesConfig',
 
     # Student support tools
-    'lms.djangoapps.student_account',
     'support',
 
     # External auth (OpenID, shib)
@@ -2106,7 +2105,6 @@ INSTALLED_APPS = (
 
     # additional release utilities to ease automation
     'release_util',
-
 )
 
 # Migrations which are not in the standard module "migrations"