handle this change in the 16-bit pointers PR instead of here

Author: Carl Peto

cmake/modules/SwiftSetIfArchBitness.cmake

@@ -6,9 +6,7 @@ function(set_if_arch_bitness var_name)
       "" # multi-value args
       ${ARGN})
 
-  if("${SIA_ARCH}" STREQUAL "avr")
-      set("${var_name}" "${SIA_CASE_16_BIT}" PARENT_SCOPE)
-  elseif("${SIA_ARCH}" STREQUAL "i386" OR
+  if("${SIA_ARCH}" STREQUAL "i386" OR
      "${SIA_ARCH}" STREQUAL "i686" OR
      "${SIA_ARCH}" STREQUAL "x86" OR
      "${SIA_ARCH}" STREQUAL "armv4t" OR