cups: remove unrecognised option

Remove the following 2 options:
* --disable-tiff
* --with-pdftops

The tiff and pdftops filters have been moved into another package
cups-filters, so these options are not valid any more.

Please visit here for more info:
http://www.cups.org/str.php?L3930

(From OE-Core rev: acf2aca0c6af216d2757b0591accd80608ac5898)

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/cups/cups.inc

@@ -25,7 +25,6 @@ EXTRA_OECONF = " \
                --enable-dbus \
                --enable-browsing \
                --disable-openssl \
-               --disable-tiff \
                --disable-gssapi \
                --enable-debug \
                --disable-relro \
@@ -34,7 +33,6 @@ EXTRA_OECONF = " \
                --without-perl \
                --without-python \
                --without-java \
-               --with-pdftops=none \
                "