DAOS-16457 test: remove display_memory_info (#15031) (#15075)

display_memory_info was added to debug an issue when starting the servers,
but resolved by #14295.
It is no longer needed and consumes too much log space and time.

Signed-off-by: Dalton Bohning <dalton.bohning@intel.com>

src/tests/ftest/util/server_utils.py

@@ -464,14 +464,6 @@ def support_collect_log(self, **kwargs):
  return run_remote(
  self.log, self._hosts, cmd.with_exports, timeout=self.collect_log_timeout.value)
 
- def display_memory_info(self):
- """Display server hosts memory info."""
- self.log.debug("#" * 80)
- self.log.debug("<SERVER> Collection debug memory info")
- run_remote(self.log, self._hosts, "free -m && df -h --type=tmpfs")
- run_remote(self.log, self._hosts, "ps -eo size,pid,user,command --sort -size | head -n 6")
- self.log.debug("#" * 80)
-
  def detect_format_ready(self, reformat=False):
  """Detect when all the daos_servers are ready for storage format.
 
@@ -664,14 +656,11 @@ def start(self):
  self.prepare()
 
  # Start the servers and wait for them to be ready for storage format
- self.display_memory_info()
  self.detect_format_ready()
 
  # Collect storage and network information from the servers.
- self.display_memory_info()
  self.information.collect_storage_information()
  self.information.collect_network_information()
- self.display_memory_info()
 
  # Format storage and wait for server to change ownership
  self.log.info("<SERVER> Formatting hosts: <%s>", self.dmg.hostlist)
@@ -711,9 +700,6 @@ def stop(self):
  # Make sure the mount directory belongs to non-root user
  self.set_scm_mount_ownership()
 
- # Collective memory usage after stop.
- self.display_memory_info()
-
  # Report any errors after all stop actions have been attempted
  if messages:
  raise ServerFailed("Failed to stop servers:\n {}".format("\n ".join(messages)))