Remove auto-gen project.properties

It's auto-gen by tool from default.properties in the same dir, etc.

Change-Id: I081ecb809699d42b707218b08e61b97fc9a51f1a
diff --git a/ndk/platforms/android-14/samples/native-media/project.properties b/ndk/platforms/android-14/samples/native-media/project.properties
deleted file mode 100644
index 8f51418..0000000
--- a/ndk/platforms/android-14/samples/native-media/project.properties
+++ /dev/null
@@ -1,13 +0,0 @@
-# This file is automatically generated by Android Tools.
-# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
-#
-# This file must be checked in Version Control Systems.
-#
-# To customize properties used by the Ant build system use,
-# "ant.properties", and override values to adapt the script to your
-# project structure.
-
-# Indicates whether an apk should be generated for each density.
-split.density=false
-# Project target.
-target=android-14