cpufreq: Remove CVS version control contents from documentation

Since Linux moved to git, CVS is not relevant any more.
Signed-off-by: Conghui Wang <conghui.wang@hotmail.com>
[ rjw: Subject and changelog edits, dropped trailing spaces ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Documentation/cpu-freq/index.rst

@@ -20,18 +20,15 @@ Author: Dominik Brodowski  <linux@brodo.de>
 
 Mailing List
 ------------
-There is a CPU frequency changing CVS commit and general list where
-you can report bugs, problems or submit patches. To post a message,
-send an email to linux-pm@vger.kernel.org.
+There is a CPU frequency general list where you can report bugs,
+problems or submit patches. To post a message, send an email to
+linux-pm@vger.kernel.org.
 
 Links
 -----
 the FTP archives:
 * ftp://ftp.linux.org.uk/pub/linux/cpufreq/
 
-how to access the CVS repository:
-* http://cvs.arm.linux.org.uk/
-
 the CPUFreq Mailing list:
 * http://vger.kernel.org/vger-lists.html#linux-pm