Fix rustc test suite

scripts/setup_rust_fork.sh

@@ -41,6 +41,3 @@ popd
 # Allow the testsuite to use llvm tools
 host_triple=$(rustc -vV | grep host | cut -d: -f2 | tr -d " ")
 export LLVM_BIN_DIR="$(rustc --print sysroot)/lib/rustlib/$host_triple/bin"
-
-# local-rebuild should probably set this unconditionally
-export BOOTSTRAP_SKIP_TARGET_SANITY=1

scripts/test_rustc_tests.sh

@@ -77,7 +77,6 @@ rm -r tests/ui/instrument-coverage/
 # missing f16/f128 support
 rm tests/ui/half-open-range-patterns/half-open-range-pats-semantics.rs
 rm tests/ui/asm/aarch64/type-f16.rs
-rm tests/ui/consts/const-float-bits-conv.rs
 
 # optimization tests
 # ==================