Complete removal of ident code

Commit 9f15ca6 removed most, but not all, of the #ident / #pragma
ident code in Open MPI.  Remove the rest of the code, including
the configure checks for #ident / #pragma ident support.  This patch
fixes a compile error when weak symbols are disabled that was caused
by the previous patch only removing some of the ident code in
the fortran library.

Signed-off-by: Brian Barrett <bbarrett@amazon.com>
(cherry picked from commit 6b0038e)

Author: bwbarrett

config/opal_check_ident.m4

@@ -395,10 +395,6 @@ AM_CONDITIONAL(OMPI_NEED_WINDOWS_REPLACEMENTS,
 # Do all Interix detections if necessary
 OMPI_INTERIX
 
-# Does the compiler support "ident"-like constructs?
-
-OPAL_CHECK_IDENT([CC], [CFLAGS], [c], [C])
-
 #
 # Check for some types
 #

configure.ac

@@ -22,8 +22,6 @@
 
 #include "ompi_config.h"
 
-const char ident[] = OMPI_IDENT_STRING;
-
 #include "ompi/mpi/fortran/mpif-h/bindings.h"
 
 #if OMPI_BUILD_MPI_PROFILING

ompi/mpi/fortran/mpif-h/init_f.c

@@ -65,12 +65,6 @@
 #include <sys/mman.h>
 #endif
 
-#if OPAL_CC_USE_PRAGMA_IDENT
-#pragma ident OMPI_IDENT_STRING
-#elif OPAL_CC_USE_IDENT
-#ident OSHMEM_IDENT_STRING
-#endif
-
 /*
  * WHAT: add thread for invoking opal_progress() function
  * WHY:  SHMEM based on current ompi/trunk (by the time of integrating into Open MPI)