fix deps - remove false unmets in Unicode-Normalize

perl.req creates unmet deps 
perl(unicode/CombiningClass.pl)
perl(unicode/Decomposition.pl)

diff --git a/cpan/Unicode-Normalize/mkheader b/cpan/Unicode-Normalize/mkheader
index 8d4c1b8..fbfc986 100644
--- a/dist/Unicode-Normalize/mkheader
+++ b/dist/Unicode-Normalize/mkheader
@@ -65,10 +65,8 @@ our %Comp2nd;	# $codepoint => 1          : may be composed with a prev char.
 
 # from core Unicode database
 our $Combin = do "unicore/CombiningClass.pl"
-    || do "unicode/CombiningClass.pl"
     || croak "$PACKAGE: CombiningClass.pl not found";
 our $Decomp = do "unicore/Decomposition.pl"
-    || do "unicode/Decomposition.pl"
     || croak "$PACKAGE: Decomposition.pl not found";
 
 # CompositionExclusions.txt since Unicode 3.2.0.  If this ever changes, it