[LU-5596] Remove obsolete global variable in LNET code

• Type: Improvement
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.7.0
• Affects Version/s: Lustre 2.7.0
• Labels: lnet
• Assignee: James Nunez (Inactive)
• Reporter: James Nunez (Inactive)

Description

In lnet/utils/lst.c, the definition of the "session_features" variable changes base on Lustre version:

#if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 50, 0)
/* assume all nodes can understand feature LST_FEAT_BULK_LEN */
static unsigned		   session_features = LST_FEATS_MASK;
#else
static unsigned		   session_features = LST_FEATS_EMPTY;
#endif

Since the Lustre master tag is now 2.6.52 or greater, the "else" definition is now obsolete and should be removed.