RFA: don't print `const' qualifier for ref types

[David Taylor]

    From: Jim Blandy <jimb@zwingli.cygnus.com>
    Date: Tue, 24 Apr 2001 12:47:35 -0500 (EST)

    See the comments in the patched code for details.

    2001-04-13  Jim Blandy  <jimb@redhat.com>

	    * c-typeprint.c (c_type_print_cv_qualifier): Don't print `const'
	    qualifier on C++ references; all references are innately const.

Approved.