Remove duplicated and change order

`reg*` affects `doc/regexp.rdoc`, but it is not a file of the Oniguruma/Onigmo regular expression engine.
`reg*.[ch]` matches `reg*` except `doc/regexp.rdoc`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67321 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

.editorconfig

@@ -11,12 +11,6 @@ trim_trailing_whitespace = true
 [*.bat]
 end_of_line = crlf
 
-[reg*]
-indent_size = 2
-
-[enc/*]
-indent_size = 2
-
 [*.gemspec]
 indent_size = 2
 
@@ -29,5 +23,8 @@ indent_size = 2
 [{*[Mm]akefile*,*.mak,*.mk,depend}]
 indent_style = tab
 
+[enc/*]
+indent_size = 2
+
 [reg*.[ch]]
 indent_size = 2