Enable end_to_end_fuzzer on Travis.

Change-Id: I1ab48fea2cbbbb08f34c11988d8823eabb164219
diff --git a/.travis.yml b/.travis.yml
index a813041..4775766 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -143,9 +143,7 @@
       done
       if [[ "$CFG" == *-libfuzzer ]]; then
         # Run a single iteration each to make sure they are not crashing.
-        # FIXME(fmayer): Fix the race condition regarding set_duration_ms
-        # and uncomment this fuzzer.
-        # out/dist/end_to_end_shared_memory_fuzzer -runs=1
+        out/dist/end_to_end_shared_memory_fuzzer -runs=1
         out/dist/buffered_frame_deserializer_fuzzer -runs=1
       fi
     else