bug#30342: 25.3; xfont_draw in xfont.c does the same thing in both branches of an if statement

[Daniel Brooks]

I happened to be looking at this function and noticed that both sides of
the with_background condition do exactly the same thing; I'm sure it
gradually got so.

http://git.savannah.gnu.org/cgit/emacs.git/tree/src/xfont.c#n1046

db48x


In GNU Emacs 25.3.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.22.19)
 of 2017-09-14 built on buildvm-31.phx2.fedoraproject.org
Windowing system distributor 'Fedora Project', version 11.0.11906000
System Description:     Fedora release 27 (Twenty Seven)

Configured using:
 'configure --build=x86_64-redhat-linux-gnu
 --host=x86_64-redhat-linux-gnu --program-prefix=
 --disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
 --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
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 build_alias=x86_64-redhat-linux-gnu host_alias=x86_64-redhat-linux-gnu
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Configured features:
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ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
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Important settings:
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