installperl: CaseFolding.txt no longer needed

A previous commit has removed the dependency on this file.

diff --git a/installperl b/installperl
index 8b22d72..c19bff1 100755 (executable)
--- a/installperl
+++ b/installperl
@@ -728,7 +728,7 @@ sub installlib {
     if ( $dir =~ /^unicore/ ) {
       if ( $name =~ /\.txt\z/ ) {
         # We can ignore most, but not all .txt files
-        return unless $name =~ /\A(?:Blocks|CaseFolding|SpecialCasing|NamedSequences)\.txt\z/;
+        return unless $name =~ /\A(?:Blocks|SpecialCasing|NamedSequences)\.txt\z/;
       }
       else {
         # TestProp only needed during testing