Remove useless assignment of 'len'

The variable 'len' is not used after this statement.
Probably a copy'n'paste leftover from the similar
looking block above.

cppcheck reported:
[rockbox/utils/zenutils/source/shared/cenc.cpp:212]: (style) Same expression on both sides of '-'.

Change-Id: Ia8357187ed39d3fab10d97df75a1146c4f733790

1 files changed, 0 insertions, 1 deletions

diff --git a/utils/zenutils/source/shared/cenc.cpp b/utils/zenutils/source/shared/cenc.cpp
index 929a59b64d..c40c863887 100644
--- a/utils/zenutils/source/shared/cenc.cpp
+++ b/utils/zenutils/source/shared/cenc.cpp
@@ -209,7 +209,6 @@ int encode_run(byte* dst, int& dstidx, byte val, int len, int dstlen)
             int tmp = encode_run(dst, dstidx, val, len, dstlen);
             if (!tmp) return 0;
             ret += tmp;
-            len -= len;
         }
     }