openmp: remove duplicate symbol version script entries

[emaste]

Summary

LLD warns on duplicate entries:

/usr/bin/ld: warning: duplicate symbol '__kmp_get_reduce_method' in version script
/usr/bin/ld: warning: duplicate symbol '__kmp_itt_fini_ittlib' in version script
/usr/bin/ld: warning: duplicate symbol '__kmp_itt_init_ittlib' in version script

[emaste]

As an aside it looks like cmake's omp lib rule has no dependency on the version script / export list file.

[AndreyChurbanov]

LGTM

runtime/src/exports_so.txt

#if USE_ITT_BUILD
         __kmp_acquire_nested_drdpa_lock;
         __kmp_acquire_nested_queuing_lock;
         __kmp_acquire_nested_tas_lock;
         __kmp_acquire_nested_ticket_lock;
         __kmp_acquire_queuing_lock;
         __kmp_acquire_tas_lock;
         __kmp_acquire_ticket_lock;
         __kmp_fork_call;
-        __kmp_get_reduce_method;
         __kmp_invoke_microtask;
-        __kmp_itt_fini_ittlib;
-        __kmp_itt_init_ittlib;
 #if KMP_USE_MONITOR
         __kmp_launch_monitor;
         __kmp_reap_monitor;
 #endif
         __kmp_launch_worker;
         __kmp_reap_worker;
         __kmp_release_64;
         __kmp_wait_64;