diff --git a/BoardConfigCommon.mk b/BoardConfigCommon.mk
index a5b6674..35bfa85 100644
--- a/BoardConfigCommon.mk
+++ b/BoardConfigCommon.mk
@@ -70,9 +70,6 @@ BOARD_FLASH_BLOCK_SIZE := 131072
 # Properties
 BOARD_PROPERTY_OVERRIDES_SPLIT_ENABLED := true
 
-# Releasetools
-TARGET_RELEASETOOLS_EXTENSIONS := $(COMMON_PATH)/releasetools
-
 # Vendor
 TARGET_COPY_OUT_VENDOR := vendor
 
diff --git a/releasetools/releasetools.py b/releasetools/releasetools.py
deleted file mode 100644
index 627a2d7..0000000
--- a/releasetools/releasetools.py
+++ /dev/null
@@ -1,5 +0,0 @@
-def FullOTA_InstallEnd(info):
-    info.script.AppendExtra('mount("ext4", "EMMC", "/dev/block/platform/13500000.dwmmc0/by-name/SYSTEM", "/system");');
-    info.script.AppendExtra('run_program("/sbin/sed", "-i", "/exfat/d", "/system/etc/selinux/plat_sepolicy.cil");');
-    info.script.AppendExtra('run_program("/sbin/sed", "-i", "/sdfat/d", "/system/etc/selinux/plat_sepolicy.cil");');
-    info.script.AppendExtra('unmount("/system");');