ghostscript: Remove leftover file

This should have been removed in a previous change but was accidentally
left behind and points at an invalid directory.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/recipes-extended/ghostscript/ghostscript/i686 b/meta/recipes-extended/ghostscript/ghostscript/i686
deleted file mode 120000 (symlink)
index 87aaca5..0000000
--- a/meta/recipes-extended/ghostscript/ghostscript/i686
+++ /dev/null
@@ -1 +0,0 @@
-i586
\ No newline at end of file