Runtimes: remove unnecessary unused function (NFC)

Remove the plist based resource embedding as Darwin platform overlays
are not built as part of the Swift project.

Author: compnerd

Runtimes/Overlay/cmake/modules/ResourceEmbedding.cmake

@@ -1,35 +1,3 @@
-function(generate_plist project_name project_version target)
-  set(PLIST_INFO_PLIST "Info.plist")
-  set(PLIST_INFO_NAME "${project_name}")
-
-  # Underscores aren't permitted in the bundle identifier.
-  string(REPLACE "_" "" PLIST_INFO_UTI "com.apple.dt.runtime.${PLIST_INFO_NAME}")
-  set(PLIST_INFO_VERSION "${project_version}")
-  set(PLIST_INFO_BUILD_VERSION "${project_version}")
-
-  set(PLIST_INFO_PLIST_OUT "${PLIST_INFO_PLIST}")
-  set(PLIST_INFO_PLIST_IN "${PROJECT_SOURCE_DIR}/${PLIST_INFO_PLIST}.in")
-
-  if(APPLE)
-    target_link_options(${target} PRIVATE
-      "SHELL:-Xlinker -sectcreate -Xlinker __TEXT -Xlinker __info_plist -Xlinker ${CMAKE_CURRENT_BINARY_DIR}/${PLIST_INFO_PLIST_OUT}")
-  endif()
-
-  configure_file(
-      "${PLIST_INFO_PLIST_IN}"
-      "${PLIST_INFO_PLIST_OUT}"
-      @ONLY
-      NEWLINE_STYLE UNIX)
-
-  set_property(TARGET ${target} APPEND PROPERTY LINK_DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${PLIST_INFO_PLIST_OUT}")
-
-  # If Application Extensions are enabled, pass the linker flag marking
-  # the dylib as safe.
-  if (CXX_SUPPORTS_FAPPLICATION_EXTENSION AND (NOT DISABLE_APPLICATION_EXTENSION))
-    list(APPEND link_flags "-Wl,-application_extension")
-  endif()
-endfunction()
-
 # FIXME: it appears that `CMAKE_MT` evaluates to an empty string which prevents
 # the use of the variable. This aliases `MT` to `CMAKE_MT` and tries to fallback
 # to known spellings for the tool.