Removed Solaris conditions from test files

We no longer execute those files with Solaris platforms.

Author: hsbt

test/fileutils/test_fileutils.rb

@@ -1349,7 +1349,7 @@ def test_chmod_symbol_mode
     # regular file. It's slightly strange. Anyway it's no effect bit.
     # see /usr/src/sys/ufs/ufs/ufs_chmod()
     # NetBSD, OpenBSD, Solaris, and AIX also deny it.
-    if /freebsd|netbsd|openbsd|solaris|aix/ !~ RUBY_PLATFORM
+    if /freebsd|netbsd|openbsd|aix/ !~ RUBY_PLATFORM
       chmod "u+t,o+t", 'tmp/a'
       assert_filemode 07500, 'tmp/a'
       chmod "a-t,a-s", 'tmp/a'