Update share/CMakeLists.txt

Co-authored-by: Dougie Squire <[email protected]>

Author: anton-seaice

share/CMakeLists.txt

@@ -24,7 +24,6 @@ target_sources(OM3_share PRIVATE
   CESM_share/include/shr_assert.h
   CESM_share/src/shr_abort_mod.F90
   CESM_share/src/shr_cal_mod.F90
-  CESM_share/src/shr_const_mod.F90
   CESM_share/src/shr_file_mod.F90
   CESM_share/src/shr_kind_mod.F90
   CESM_share/src/shr_log_mod.F90