Remove include/private/canned_fs_config.h

canned_fs_config.h should be included as part of libcutils, not as a
global include.  It looks like the few users of this file already do
this correctly, so it's time to remove the symlink.

Test: treehugger
Change-Id: I72d327c2f1f374a1fa9e22b5ee1cceb0311a6818
diff --git a/include/private/canned_fs_config.h b/include/private/canned_fs_config.h
deleted file mode 120000
index 8f92b2d..0000000
--- a/include/private/canned_fs_config.h
+++ /dev/null
@@ -1 +0,0 @@
-../../libcutils/include/private/canned_fs_config.h
\ No newline at end of file