Revert "rootdir: Add modules directory"

Revert submission 1413808-modules_partition

Reason for revert: modules partition no longer needed
Reverted Changes:
Iceafebd85:Add modules partition
I2fa96199a:rootdir: Add modules directory
Ie397b9ec6:Add modules partition.
I4200d0cf5:fastboot: add modules partition

Bug: 163543381

Change-Id: Ic9a94892c3403675eeac694d9ca0af5654f1a5c8
diff --git a/rootdir/Android.mk b/rootdir/Android.mk
index 81dba1f..77fa94e 100644
--- a/rootdir/Android.mk
+++ b/rootdir/Android.mk
@@ -141,9 +141,6 @@
 # via /odm/lib/modules directly.
 LOCAL_POST_INSTALL_CMD += ; ln -sf /odm/odm_dlkm/etc $(TARGET_ROOT_OUT)/odm_dlkm/etc
 
-# For /modules partition.
-LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/modules
-
 ifdef BOARD_CACHEIMAGE_FILE_SYSTEM_TYPE
   LOCAL_POST_INSTALL_CMD += ; mkdir -p $(TARGET_ROOT_OUT)/cache
 else