libdispatch: enable building for x86

This is now supported due to our patch for using our own BlocksRuntime.

Author: triplef

phases/18-libdispatch.bat

@@ -5,12 +5,6 @@ set TAG=
 
 call "%~dp0\common.bat" prepare_project || exit /b 1
 
-if "%ARCH%" == "x86" (
-  echo Skipping libdispatch for x86
-  echo Blocked on issue: https://bugs.swift.org/browse/SR-14314
-  exit /b 0
-)
-
 set BUILD_DIR="%SRCROOT%\%PROJECT%\build-%ARCH%-%BUILD_TYPE%"
 if exist "%BUILD_DIR%" (rmdir /S /Q "%BUILD_DIR%" || exit /b 1)
 mkdir "%BUILD_DIR%" || exit /b 1