Remove disable_ftu.patch

Change-Id: I5f49dd9c47928593587cff32c94bd16bed17db33

patch/all/gaia/disable_ftu.patch

-diff --git a/Android.mk b/Android.mk
-index 82ca524..55f2449 100644
---- a/Android.mk
-+++ b/Android.mk
-@@ -25,6 +25,13 @@ GAIA_MAKE_FLAGS += PRODUCTION=1
- B2G_SYSTEM_APPS := 1
- endif
- 
-+# Disable the First time user experience in engineering builds
-+ifneq ($(filter eng, $(TARGET_BUILD_VARIANT)),)
-+ifeq ($(FTU),)
-+GAIA_MAKE_FLAGS += NOFTU=1
-+endif
-+endif
-+
- ifeq ($(B2G_SYSTEM_APPS),1)
- GAIA_MAKE_FLAGS += B2G_SYSTEM_APPS=1
- GAIA_APP_INSTALL_PARENT := $(TARGET_OUT)/b2g