Revert "Merge pull request #2217 from edx/max/mongostat"

This reverts commit 2c53e32c, reversing
changes made to f376391b.

Reason: changes were added to mongo role instead of mongo_3_0

playbooks/roles/mongo/tasks/main.yml

@@ -163,7 +163,7 @@
 
 - name: add mongostat logging script
   template:
-    src="log-mongostat.sh.j2"
+    src="edx/bin/log-mongostat.sh.j2"
     dest="{{ COMMON_BIN_DIR }}/log-mongostat.sh"
     owner="{{ mongo_user }}"
     group="{{ mongo_user }}"