Don't copy local mke2fs.conf for O-MR1

* It is now copied from system/extras/ext4_utils

Change-Id: Ibddcad4928c17bc174390d75708a5382a9262441
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index a7208a2..0b0fa86 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -406,13 +406,15 @@
 include $(BUILD_PREBUILT)
 
 #mke2fs.conf
-include $(CLEAR_VARS)
-LOCAL_MODULE := mke2fs.conf
-LOCAL_MODULE_TAGS := eng
-LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
-LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/etc
-LOCAL_SRC_FILES := $(LOCAL_MODULE)
-include $(BUILD_PREBUILT)
+ifeq ($(shell test $(PLATFORM_SDK_VERSION) -lt 26; echo $$?),0)
+    include $(CLEAR_VARS)
+    LOCAL_MODULE := mke2fs.conf
+    LOCAL_MODULE_TAGS := eng
+    LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+    LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/etc
+    LOCAL_SRC_FILES := $(LOCAL_MODULE)
+    include $(BUILD_PREBUILT)
+endif
 
 ifeq ($(BOARD_HAS_NO_REAL_SDCARD),)
 	ifeq ($(shell test $(PLATFORM_SDK_VERSION) -lt 23; echo $$?),0)