remove duplicated LA message (#1523)

Co-authored-by: Camille Bellot <[email protected]>

Author: cbellot000

src/ansys/dpf/core/server_types.py

@@ -126,7 +126,7 @@ def _wait_and_check_server_connection(
         def read_stderr():
             with io.TextIOWrapper(process.stderr, encoding="utf-8") as log_err:
                 for line in log_err:
-                    LOG.error(line)
+                    LOG.debug(line)
                     current_errors.append(line)
 
         stderr = read_stderr
@@ -140,7 +140,6 @@ def read_stdout():
                     lines.append(line)
 
         stdout = read_stdout
-
     # must be in the background since the process reader is blocking
     Thread(target=stdout, daemon=True).start()
     Thread(target=stderr, daemon=True).start()