Revert "Always create ramdisk/first_stage_ramdisk."

This reverts commit 42c55f5ce914e5c7b6789c3d752565e197beebd0.

Reason for revert: b/171512004 It should be created at runtime.

Bug: 171512004
Change-Id: If9277f078cb343fbad825f0e8d1348d50f4b759a
diff --git a/init/Android.mk b/init/Android.mk
index d83a51d..da94daf 100644
--- a/init/Android.mk
+++ b/init/Android.mk
@@ -78,7 +78,6 @@
 LOCAL_POST_INSTALL_CMD := mkdir -p \
     $(TARGET_RAMDISK_OUT)/debug_ramdisk \
     $(TARGET_RAMDISK_OUT)/dev \
-    $(TARGET_RAMDISK_OUT)/first_stage_ramdisk \
     $(TARGET_RAMDISK_OUT)/mnt \
     $(TARGET_RAMDISK_OUT)/proc \
     $(TARGET_RAMDISK_OUT)/sys \