Remove /var/ipfire/firebuild.

This file provides lots of bogous information and information
about the build system that is not of much interest.

config/cfgroot/header.pl

@@ -88,15 +88,6 @@ if ( -d "/var/ipfire/langs/${language}/" ) {
     };
 };
 
-### Read IPFire Buildversion
-$FIREBUILD = "File not found: firebuild\n";
-if (open(MYFile, "<${swroot}/firebuild")) {
-    $FIREBUILD = <MYFile>;
-    chomp($FIREBUILD);
-    $FIREBUILD = "(Build: $FIREBUILD)";
-    close(MYFile);
-};
-
 require "${swroot}/langs/en.pl";
 require "${swroot}/langs/${language}.pl";
 eval `/bin/cat /srv/web/ipfire/html/themes/$settings{'THEME'}/include/functions.pl`;

config/rootfiles/common/armv5tel/installer

@@ -1,3 +1,2 @@
 #etc/system-release
 #opt/pakfire/db/core/mine
-#var/ipfire/firebuild

config/rootfiles/common/configroot

@@ -199,5 +199,4 @@ var/ipfire/wakeonlan
 var/ipfire/wireless
 #var/ipfire/wireless/config
 #var/ipfire/wireless/settings
-var/ipfire/firebuild
 etc/system-release