removes outdated and flaky test_skip_repair from retransmit-stage (#2…

…4121)

test_skip_repair in retransmit-stage is no longer relevant because
following: #19233
repair packets are filtered out earlier in window-service and so
retransmit stage does not know if a shred is repaired or not.
Also, following turbine peer shuffle changes:
#24080
the test has become flaky since it does not take into account how peers
are shuffled for each shred.

(cherry picked from commit 2282571)

# Conflicts:
#	core/src/retransmit_stage.rs

core/src/retransmit_stage.rs

@@ -528,6 +528,7 @@ impl RetransmitStage {
 
 #[cfg(test)]
 mod tests {
+<<<<<<< HEAD
     use {
         super::*,
         solana_gossip::contact_info::ContactInfo,
@@ -617,6 +618,9 @@ mod tests {
         assert_eq!(packet_batch.packets.len(), 1);
         assert!(!packet_batch.packets[0].meta.repair());
     }
+=======
+    use super::*;
+>>>>>>> 228257149 (removes outdated and flaky test_skip_repair from retransmit-stage (#24121))
 
     #[test]
     fn test_already_received() {