multihost: remove unused parameter from MultihostHost.get_connection()

pytest_mh/_private/multihost.py

@@ -529,7 +529,7 @@ def __init__(self, domain: DomainType, confdict: dict[str, Any]):
 
         # Connection to the host
         self.conn: Connection[Process[ProcessResult, ProcessInputBuffer], ProcessResult[ProcessError]] = (
-            self.get_connection(self.shell)
+            self.get_connection()
         )
         """Connection to the host."""
 
@@ -606,16 +606,14 @@ def get_artifacts_list(self, host: MultihostHost, artifacts_type: MultihostArtif
         """
         return self.configured_artifacts.get(artifacts_type) | self.artifacts.get(artifacts_type)
 
-    def get_connection(self, shell: Shell) -> Connection:
+    def get_connection(self) -> Connection:
         """
         Get connection object to the host with given shell.
 
         This creates a connection object using the information from the
         multihost configuration. The caller should not make any assumptions
         about the connection mechanism.
 
-        :param shell: Shell that will be used to run commands.
-        :type shell: Shell
         :return: Generic connection to the host.
         :rtype: Connection
         """