Do not set stack memory limit on OSX.

cmake/EthCompilerSettings.cmake

@@ -55,11 +55,6 @@ else ()
 	message(WARNING "Your compiler is not tested, if you run into any issues, we'd welcome any patches.")
 endif ()
 
-# Set stack memory limits
-if (APPLE)
-	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-stack_size,1000000")
-endif()
-
 if (PROFILING AND (("${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU") OR ("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")))
 	set(CMAKE_CXX_FLAGS "-g ${CMAKE_CXX_FLAGS}")
 	set(CMAKE_C_FLAGS "-g ${CMAKE_C_FLAGS}")