Make sure you're signed in to the right account before you delete your profile. It looks like you’re signed out.
You can delete your Google+ profile any time by going to http://plus.google.com/downgrade, signing in, and following the instructions on that page. If you see an upgrade page, you don't have a Google+ profile.
What happens after you delete your Google+ profile
Deleting your Google+ profile will not affect certain other Google products, like Search, Gmail, and your Google Account.
To learn more about what happens when you delete your Google+ profile, visit the downgrade page. You can see the downgrade page without deleting your profile.
Restore a deleted Google+ profile
Deleting your Google+ profile is permanent. To use Google+ again after deleting your profile, you'll need to create a new profile.
Delete your Google Account
If you want to stop using all Google products that make you sign in, like Gmail and Google Wallet, you can delete your Google Account.
Uninstall the Google+ Android app
If you are running Marshmallow and your device manufacturer allows it, you can follow these steps to uninstall apps on your Android device. You can't uninstall the Google+ app on some Android devices, but you can disable it.