msg711.acm: Remove unused function

[Andrew Talbot]

Changelog:
    msg711.acm: Remove unused function.

diff -urN a/dlls/msg711.acm/msg711.c b/dlls/msg711.acm/msg711.c
--- a/dlls/msg711.acm/msg711.c	2006-10-20 18:08:03.000000000 +0100
+++ b/dlls/msg711.acm/msg711.c	2007-01-11 11:48:14.000000000 +0000
@@ -982,17 +982,6 @@
 }
 
 /***********************************************************************
- *           G711_round
- *
- */
-static	inline DWORD	G711_round(DWORD a, DWORD b, DWORD c)
-{
-    assert(a && b && c);
-    /* to be sure, always return an entire number of c... */
-    return ((double)a * (double)b + (double)c - 1) / (double)c;
-}
-
-/***********************************************************************
  *           G711_StreamSize
  *
  */