fix: broken code signing

Author: okwasniewski

ios.toolchain.cmake

@@ -781,7 +781,6 @@ if (NOT DEFINED CMAKE_MACOSX_BUNDLE)
   set(CMAKE_MACOSX_BUNDLE YES)
 endif()
 set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO")
-set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO")
 set(CMAKE_SHARED_LIBRARY_PREFIX "lib")
 set(CMAKE_SHARED_LIBRARY_SUFFIX ".dylib")
 set(CMAKE_EXTRA_SHARED_LIBRARY_SUFFIXES ".tbd" ".so")