Fixed code smell 'Unused local variables should be removed'.

web/pgadmin/browser/__init__.py

@@ -718,7 +718,7 @@ def utils():
         from pgadmin.utils.driver import get_driver
         driver = get_driver(PG_DEFAULT_DRIVER)
         pg_libpq_version = driver.libpq_version()
-    except Exception as e:
+    except Exception:
         pg_libpq_version = 0
 
     for submodule in current_blueprint.submodules:

web/pgadmin/browser/server_groups/servers/databases/__init__.py

@@ -232,7 +232,6 @@ class DatabaseView(PGChildNodeView):
             if self.manager.db == row['name']:
                 row['canDrop'] = False
             else:
-                conn = self.manager.connection(row['name'], did=row['did'])
                 row['canDrop'] = True
 
         return ajax_response(

web/pgadmin/browser/utils.py

@@ -428,7 +428,7 @@ class PGChildNodeView(NodeView):
                     return internal_server_error(errormsg=msg)
         except (ConnectionLost, SSHTunnelConnectionLost, CryptKeyMissing):
             raise
-        except Exception as e:
+        except Exception:
             return precondition_required(
                 gettext(
                     "Connection to the server has been lost."

web/pgadmin/feature_tests/pg_utilities_backup_restore_test.py

@@ -104,7 +104,7 @@ class PGUtilitiesBackupFeatureTest(BaseFeatureTest):
                     lambda driver: driver.find_element_by_name(
                         NavMenuLocators.backup_filename_txt_box_name)):
                     click = False
-            except Exception as e:
+            except Exception:
                 pass
 
         # Wait for the backup status alertfier

web/pgadmin/feature_tests/query_tool_tests.py

@@ -674,7 +674,7 @@ SELECT 1, pg_sleep(300)"""
             show_jit = pg_cursor.fetchone()
             if show_jit[0] == 'on':
                 jit_enabled = True
-        except Exception as e:
+        except Exception:
             pass
 
         connection.close()

web/pgadmin/feature_tests/xss_checks_panels_and_query_tool_test.py

@@ -314,7 +314,7 @@ class CheckForXssFeatureTest(BaseFeatureTest):
                     )
                 ).perform()
                 break
-            except Exception as e:
+            except Exception:
                 if idx != 2:
                     continue
                 else:

web/pgadmin/feature_tests/xss_checks_pgadmin_debugger_test.py

@@ -88,7 +88,7 @@ class CheckDebuggerForXssFeatureTest(BaseFeatureTest):
                            "contains(@class,'ajs-header')]")
             ))
 
-        except TimeoutException as e:
+        except TimeoutException:
             is_error = None
 
         # If debugger plugin is not found

web/pgadmin/utils/csv.py

@@ -485,7 +485,7 @@ def register_dialect(name, dialect='excel', **fmtparams):
 
     try:
         Dialect.validate(dialect)
-    except Exception as e:
+    except Exception:
         raise TypeError('dialect is invalid')
 
     assert name not in _dialect_registry