fix(onboarding-docs): Django snippet referencing Falcon (#63083)

- closes https://github.com/getsentry/sentry/issues/63079

static/app/gettingStartedDocs/python/django.tsx

@@ -83,10 +83,7 @@ const onboarding: OnboardingConfig = {
       configurations: [
         {
           language: 'python',
-          code: `
-${getSdkSetupSnippet(params)}
-api = falcon.API()
-      `,
+          code: getSdkSetupSnippet(params),
         },
       ],
     },