more cleaning to really do not use archaic stuff

configure.in.in

@@ -11,31 +11,5 @@
 @YAST2-CHECKS-COMMON@
 @YAST2-CHECKS-YCP@
 
-# If we change the default here instead of in Makefile.am
-# then it can be overriden at configure time
-if test "${sysconfdir}" = '${prefix}/etc'; then
-    sysconfdir=/etc
-fi
-
-AC_MSG_CHECKING([fvwm directory])
-coresysconfdir=`pkg-config --print-errors --variable=sysconfdir yast2-core`
-if test -z "$coresysconfdir"; then
-   AC_MSG_ERROR([yast2-core.rpm does not specify sysconfdir, get a newer one])
-fi
-#argh hack
-if test "$coresysconfdir" = /usr/etc; then
-   coresysconfdir=/etc
-fi
-XVersion=$coresysconfdir/YaST2/XVersion
-
-Xsharedir=`. $XVersion; echo $Xsharedir`
-if test -z "$Xsharedir"; then
-   AC_MSG_ERROR([$XVersion not found, get a newer yast2.rpm])
-fi
-# make overridable for prefix builds
-: ${fvwmdir=$Xsharedir/fvwm}
-AC_MSG_RESULT([$fvwmdir])
-AC_SUBST(fvwmdir)
-
 ## and generate the output...
 @YAST2-OUTPUT@