Partially revert 2966c0a for 6.2

Author: kateinoigakukun

schemes/release-6.2/build/build-target-toolchain.sh

@@ -120,13 +120,11 @@ main() {
     --skip-build-cmark \
     --skip-build-benchmarks \
     --skip-early-swift-driver \
-    --wasmkit \
     --build-wasm-stdlib \
     --skip-test-wasm-stdlib \
     --native-swift-tools-path="$OPTIONS_SWIFT_BIN" \
     --native-clang-tools-path="$OPTIONS_CLANG_BIN" \
     --native-llvm-tools-path="$OPTIONS_LLVM_BIN" \
-    --build-runtime-with-host-compiler \
     --extra-cmake-options="\
       -DSWIFT_STDLIB_TRACING=NO \
       -DSWIFT_STDLIB_HAS_ASL=NO \