build.ps1: remove unnecessary CMake options

Remove `CMAKE_SYSTEM_NAME` and `CMAKEY_Swift_COMPILER_WORKS` from the
CMake invocation for building the experimental SDK.

Author: compnerd

utils/build.ps1

@@ -2523,12 +2523,10 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         BUILD_SHARED_LIBS = if ($Static) { "NO" } else { "YES" };
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         # TODO(compnerd) enforce dynamic linking of BlocksRuntime and dispatch.
         CMAKE_CXX_FLAGS = $(if ($Static) { @("-Ddispatch_STATIC") } else { @() });
         CMAKE_Swift_FLAGS = $(if ($Static) { @("-Xcc", "-static-libclosure") } else { @() });
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         # NOTE(compnerd) we can get away with this currently because we only
         # use the C portion of the dispatch build, which is supposed to always
@@ -2550,9 +2548,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         BUILD_SHARED_LIBS = if ($Static) { "NO" } else { "YES" };
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
       }
@@ -2568,9 +2564,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         BUILD_SHARED_LIBS = if ($Static) { "NO" } else { "YES" };
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
       }
@@ -2586,9 +2580,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         BUILD_SHARED_LIBS = if ($Static) { "NO" } else { "YES" };
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
         SwiftOverlay_DIR = "${OverlayBinaryCache}\cmake\SwiftOverlay";
@@ -2606,9 +2598,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_CXX_FLAGS = @("-I${RuntimeBinaryCache}\include");
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
         SwiftOverlay_DIR = "${OverlayBinaryCache}\cmake\SwiftOverlay";
@@ -2626,9 +2616,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_CXX_FLAGS = @("-I${RuntimeBinaryCache}\include");
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
         SwiftOverlay_DIR = "${OverlayBinaryCache}\cmake\SwiftOverlay";
@@ -2645,9 +2633,7 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         BUILD_SHARED_LIBS = if ($Static) { "NO" } else { "YES" };
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
         SwiftOverlay_DIR = "${OverlayBinaryCache}\cmake\SwiftOverlay";
@@ -2989,10 +2975,8 @@ function Build-ExperimentalSDK([Hashtable] $Platform) {
         BUILD_SHARED_LIBS = "NO";
         CMAKE_FIND_PACKAGE_PREFER_CONFIG = "YES";
         CMAKE_Swift_COMPILER_TARGET = (Get-ModuleTriple $Platform);
-        CMAKE_Swift_COMPILER_WORKS = "YES";
         CMAKE_Swift_FLAGS = @("-static-stdlib", "-Xfrontend", "-use-static-resource-dir");
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
-        CMAKE_SYSTEM_NAME = $Platform.OS.ToString();
 
         ENABLE_SWIFT = "YES";
       }