io.directories.unix: normalize-path doesn't need to be called

It is already called by the words copy-file delegates to.

basis/io/directories/directories-tests.factor

@@ -138,6 +138,12 @@ io.launcher io.pathnames kernel sequences tools.test ;
         "copy-destination/copy-tree-test/a/b/c/d" ascii file-contents
     ] unit-test
 
+    ! copy-file
+    { } [
+        "resource:LICENSE.txt" "test" copy-file
+    ] unit-test
+
+    ! copy-file-into
     { } [
         "copy-destination/copy-tree-test/a/b/c/d" "." copy-file-into
     ] unit-test

basis/io/directories/unix/unix.factor

@@ -29,7 +29,6 @@ M: unix delete-directory ( path -- )
     normalize-path [ rmdir ] unix-system-call drop ;
 
 M: unix copy-file ( from to -- )
-    [ normalize-path ] bi@
     [ call-next-method ]
     [ [ file-permissions ] dip swap set-file-permissions ] 2bi ;