Cutover to hardened toolchain by default (1 of 3). BUG=3981 TEST=unit,autotest

run_tests.sh

Index: run_tests.sh
diff --git a/run_tests.sh b/run_tests.sh
index 3d2c8bd9b69f4b7f1bc24a6290f2ea0b4471426a..ad9f44cb4b0e8106c046c5e0703b3e2e640630b3 100755
--- a/run_tests.sh
+++ b/run_tests.sh
@@ -57,17 +57,9 @@ trap cleanup ERR 0
 # disable this on hardened, since that is where the PIE conflict happens.
 for i in ${TESTS_DIR}/*_{test,unittests}; do
   if [[ "`file -b $i`" = "POSIX shell script text executable" ]]; then
-    if [[ -f /etc/hardened ]]; then
       LD_LIBRARY_PATH=$LD_LIBRARY_PATH /build/${FLAGS_board}/bin/bash $i
-    else
-      LD_LIBRARY_PATH=$LD_LIBRARY_PATH /build/${FLAGS_board}/lib/ld-linux.so.2 /build/${FLAGS_board}/bin/bash $i
-    fi
   else
-    if [[ -f /etc/hardened ]]; then
       LD_LIBRARY_PATH=$LD_LIBRARY_PATH $i
-    else
-      LD_LIBRARY_PATH=$LD_LIBRARY_PATH /build/${FLAGS_board}/lib/ld-linux.so.2 $i
-    fi
   fi
 done