build-script: remove dead CMake options for Swift

The build system does not support fine grained control over the tools.
Ideally we would do this by hooking into the llvm distribution
mechanism.

Author: compnerd

utils/build-script-impl

@@ -1751,23 +1751,6 @@ for host in "${ALL_HOSTS[@]}"; do
                     "${swift_cmake_options[@]}"
                 )
 
-                if [[ "${BUILD_TOOLCHAIN_ONLY}" ]]; then
-                    cmake_options+=(
-                    -DSWIFT_TOOL_SIL_OPT_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_IDE_TEST_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_REMOTEAST_TEST_BUILD=FALSE
-                    -DSWIFT_TOOL_LLDB_MODULEIMPORT_TEST_BUILD=FALSE
-                    -DSWIFT_TOOL_SIL_EXTRACT_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_LLVM_OPT_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_SDK_ANALYZER_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_SDK_DIGESTER_BUILD=FALSE
-                    -DSWIFT_TOOL_SOURCEKITD_TEST_BUILD=FALSE
-                    -DSWIFT_TOOL_SOURCEKITD_REPL_BUILD=FALSE
-                    -DSWIFT_TOOL_COMPLETE_TEST_BUILD=FALSE
-                    -DSWIFT_TOOL_SWIFT_REFLECTION_DUMP_BUILD=FALSE
-                    )
-                fi
-
                 cmake_options=(
                     "${cmake_options[@]}"
                     -DCMAKE_INSTALL_PREFIX:PATH="$(get_host_install_prefix ${host})"