Remove python.pythonPath deprecation prompt (#20371)

Closes #20340

Author: Kartik Raj

src/client/application/diagnostics/checks/pythonPathDeprecated.ts

@@ -33,10 +33,6 @@ import {
 } from './checks/powerShellActivation';
 import { PylanceDefaultDiagnosticService, PylanceDefaultDiagnosticServiceId } from './checks/pylanceDefault';
 import { InvalidPythonInterpreterService, InvalidPythonInterpreterServiceId } from './checks/pythonInterpreter';
-import {
-    PythonPathDeprecatedDiagnosticService,
-    PythonPathDeprecatedDiagnosticServiceId,
-} from './checks/pythonPathDeprecated';
 import {
     SwitchToDefaultLanguageServerDiagnosticService,
     SwitchToDefaultLanguageServerDiagnosticServiceId,
@@ -92,11 +88,6 @@ export function registerTypes(serviceManager: IServiceManager): void {
         InvalidMacPythonInterpreterService,
         InvalidMacPythonInterpreterServiceId,
     );
-    serviceManager.addSingleton<IDiagnosticsService>(
-        IDiagnosticsService,
-        PythonPathDeprecatedDiagnosticService,
-        PythonPathDeprecatedDiagnosticServiceId,
-    );
 
     serviceManager.addSingleton<IDiagnosticsService>(
         IDiagnosticsService,

src/client/application/diagnostics/serviceRegistry.ts

@@ -28,10 +28,6 @@ export namespace Diagnostics {
         'diagnostics.lsNotSupported',
         'Your operating system does not meet the minimum requirements of the Python Language Server. Reverting to the alternative autocompletion provider, Jedi.',
     );
-    export const removedPythonPathFromSettings = localize(
-        'diagnostics.removedPythonPathFromSettings',
-        'The "python.pythonPath" setting in your settings.json is no longer used by the Python extension. If you want, you can use a new setting called "python.defaultInterpreterPath" instead. Keep in mind that you need to change the value of this setting manually as the Python extension doesn\'t modify it when you change interpreters. [Learn more](https://aka.ms/AA7jfor).',
-    );
     export const invalidPythonPathInDebuggerSettings = localize(
         'diagnostics.invalidPythonPathInDebuggerSettings',
         'You need to select a Python interpreter before you start debugging.\n\nTip: click on "Select Interpreter" in the status bar.',