SERVER-14076 remove replset_remove_node.js as it is redundant and flakey

(cherry picked from commit 4acaf8a26e37986da49d51d14d26b7639699dde6)
SERVER-14829 UpdateIndexData::clear() reset all member variables

(cherry picked from commit d7133440dc8f05f0514d2b056d8605513b6e4d1b)
SERVER-14848 Add index_id_desc.js to core suite

(cherry picked from commit 7c0a3e300ccc29aa2e5835a2da7a646b51d53a39)