Test without LLVM assertions enabled on travis

Author: tkelman

.travis.yml

@@ -45,6 +45,7 @@ branches:
   only:
     - master
     - /release-.*/
+    - tk/travis-llvm-assertions
 notifications:
     email: false
     irc:
@@ -68,7 +69,7 @@ before_install:
         ln -s /usr/bin/g++-5 $HOME/bin/x86_64-linux-gnu-g++;
         gcc --version;
         BAR="bar -i 30";
-        BUILDOPTS="-j3 VERBOSE=1 FORCE_ASSERTIONS=1 LLVM_ASSERTIONS=1";
+        BUILDOPTS="-j3 VERBOSE=1 FORCE_ASSERTIONS=1";
         echo "override ARCH=$ARCH" >> Make.user;
         TESTSTORUN="all";
       elif [ `uname` = "Darwin" ]; then