tests: Don't print Hostname on every test connection (#12782)

These lines are a significant fraction of the total log size of the
regression tests. And it seems very uninteresting, it's always
'localhost' in local tests.

test_runner/fixtures/neon_fixtures.py

@@ -262,7 +262,6 @@ class PgProtocol:
         # pooler does not support statement_timeout
         # Check if the hostname contains the string 'pooler'
         hostname = result.get("host", "")
-        log.info(f"Hostname: {hostname}")
         options = result.get("options", "")
         if "statement_timeout" not in options and "pooler" not in hostname:
             options = f"-cstatement_timeout=120s {options}"