(cmp_kernel_versions) move it from any.pm to common.pm; thus preventing lazy loading of syscall.ph through

any->detect_devices>modules>list_modules>MDK::Common>MDK::Common::System>syscall.ph

This can end in crashing mgaaplet when performing live update (mga#3042)
because of lazy loading of syscall (by which time perl may as well have been
updated including syscall.ph which leave eg perl/5.12.x for perl/5.14.x)

This also saves quite some memory for:
- net_applet (5Mb aka 11%),
- mgapplet (7Mb aka 14%)
(as well as maybe for drakxnet but that's more transient):

21736 root      20   0  240m  44m  10m S    0  1.1   0:00.63 net_applet                                                                                               
21501 root      20   0  236m  39m  11m S    0  1.0   0:01.09 net_applet    

23116 root      20   0  297m  50m  12m S    0  1.3   0:00.58 mgaapplet                                                                                                
23259 root      20   0  290m  43m  12m S    0  1.1   0:00.40 mgaapplet     

1 files changed, 0 insertions, 12 deletions

diff --git a/perl-install/any.pm b/perl-install/any.pm
index fb14558f8..056566314 100644
--- a/perl-install/any.pm
+++ b/perl-install/any.pm
@@ -103,18 +103,6 @@ sub add_users {
     }
 }
 
-sub cmp_kernel_versions {
-    my ($va, $vb) = @_;
-    my $rel_a = $va =~ s/-(.*)$// && $1;
-    my $rel_b = $vb =~ s/-(.*)$// && $1;
-    ($va, $vb) = map { [ split /[.-]/ ] } $va, $vb;
-    my $r = 0;
-    mapn_ {
-	$r ||= $_[0] <=> $_[1];
-    } $va, $vb;
-    $r || $rel_a <=> $rel_b || $rel_a cmp $rel_b;
-}
-
 sub install_bootloader_pkgs {
     my ($do_pkgs, $b) = @_;