Remove accident call to default SSHKey

The sshkey should not be reset when changing to https protocol.

(cherry picked from commit deb14110aac72445767e89f39079743abfdef377)

common/dialogs/git/dialog_git_repository.cpp

@@ -427,7 +427,6 @@ void DIALOG_GIT_REPOSITORY::updateAuthControls()
             m_txtUsername->Enable( true );
             m_txtPassword->Enable( true );
             m_labelPass1->SetLabel( _( "Password:" ) );
-            setDefaultSSHKey();
         }
     }
 }