auto merge of #12305 : luqmana/rust/ub, r=sfackler

These are no longer valid options as of the recent llvm upgrade.

Author: bors

mk/platform.mk

@@ -350,7 +350,7 @@ CFG_GCCISH_DEF_FLAG_arm-unknown-linux-gnueabi := -Wl,--export-dynamic,--dynamic-
 CFG_GCCISH_PRE_LIB_FLAGS_arm-unknown-linux-gnueabi := -Wl,-whole-archive
 CFG_GCCISH_POST_LIB_FLAGS_arm-unknown-linux-gnueabi := -Wl,-no-whole-archive
 CFG_DEF_SUFFIX_arm-unknown-linux-gnueabi := .linux.def
-CFG_LLC_FLAGS_arm-unknown-linux-gnueabi := -arm-enable-ehabi -arm-enable-ehabi-descriptors
+CFG_LLC_FLAGS_arm-unknown-linux-gnueabi :=
 CFG_INSTALL_NAME_arm-unknown-linux-gnueabi =
 CFG_LIBUV_LINK_FLAGS_arm-unknown-linux-gnueabi =
 CFG_EXE_SUFFIX_arm-unknown-linux-gnueabi :=