Strip in update_[traceconv|trace_processor].

The Linux binaries are absurdly large (>100M).

traceconv size:

Before this change: 119M
After this change: 6.5M

Change-Id: I1c46911554a5979a3dfa5ebae4c66b69b1c9c662

tools/update_traceconv

diff --git a/tools/update_traceconv b/tools/update_traceconv
index 2860273..40ca99c 100755
--- a/tools/update_traceconv
+++ b/tools/update_traceconv
@@ -29,6 +29,7 @@
   platform=mac
 else
   platform=linux
+  strip $DIR/trace_to_text
 fi
 
 name=trace_to_text-$platform-$NEW_SHA