remove min_version and target_sdk_version from apple_toolchain

Summary: These attributes are not in use, they have been superseded by the ones in cxx_toolchain.

Reviewed By: manicaesar

Differential Revision: D59826043

fbshipit-source-id: 81186e1ce6abfceae78aaecd435c6b5e09e4198f

apple/apple_rules_impl.bzl

@@ -208,7 +208,6 @@ extra_attributes = {
         "libtool": attrs.exec_dep(providers = [RunInfo]),
         "lipo": attrs.exec_dep(providers = [RunInfo]),
         "mapc": attrs.option(attrs.exec_dep(providers = [RunInfo]), default = None),
-        "min_version": attrs.string(),
         "momc": attrs.exec_dep(providers = [RunInfo]),
         "objdump": attrs.option(attrs.exec_dep(providers = [RunInfo]), default = None),
         # A placeholder tool that can be used to set up toolchain constraints.
@@ -222,10 +221,6 @@ extra_attributes = {
         "requires_xcode_version_match": attrs.bool(default = False),
         "sdk_path": attrs.option(attrs.source(), default = None),  # Mark as optional until we remove `_internal_sdk_path`
         "swift_toolchain": attrs.option(attrs.toolchain_dep(), default = None),
-        # The requested deployment target for a build. This will be used to
-        # form the versioned target triple when building, and compared with
-        # each build rule's target_sdk_version to ensure compatibility.
-        "target_sdk_version": attrs.option(attrs.string(), default = None),
         "version": attrs.option(attrs.string(), default = None),
         "xcode_build_version": attrs.option(attrs.string(), default = None),
         "xcode_version": attrs.option(attrs.string(), default = None),