[NFC] Remove unused ENV vars
diff --git a/zorg/buildbot/builders/sanitizers/buildbot_standard.sh b/zorg/buildbot/builders/sanitizers/buildbot_standard.sh
index f4b945b..6c965b3 100755
--- a/zorg/buildbot/builders/sanitizers/buildbot_standard.sh
+++ b/zorg/buildbot/builders/sanitizers/buildbot_standard.sh
@@ -21,9 +21,6 @@
PLATFORM=`uname`
MAKE_JOBS=${MAX_MAKE_JOBS:-$(nproc)}
-CHECK_LIBCXX=${CHECK_LIBCXX:-1}
-CHECK_LLD=${CHECK_LLD:-1}
-
LLVM=${ROOT}/llvm
CMAKE_COMMON_OPTIONS="-GNinja -DLLVM_ENABLE_ASSERTIONS=ON -DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON -DLLVM_USE_LINKER=gold"
