Revert "add make_f2fs to Android SDK build-tools"

Broken build in Mac.

This reverts commit 54d441cd8b8ff1fb0e780cbb3baf15bed095c5d8.

Change-Id: Ide67e312b988ccf6298d18593e5b9c78f950fdd8
diff --git a/build/sdk.atree b/build/sdk.atree
index 73551b0..4ec733d 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -46,7 +46,6 @@
 bin/fastboot                            strip platform-tools/fastboot
 bin/mke2fs                              strip platform-tools/mke2fs
 bin/e2fsdroid                           strip platform-tools/e2fsdroid
-bin/make_f2fs                           strip platform-tools/make_f2fs
 bin/sqlite3                             strip platform-tools/sqlite3
 bin/dmtracedump                         strip platform-tools/dmtracedump
 bin/etc1tool                            strip platform-tools/etc1tool