Remove deprecated App::getScheme()

src/App.php

@@ -259,18 +259,6 @@ class App
 		}
 	}
 
-	/**
-	 * Returns the scheme of the current call
-	 *
-	 * @return string
-	 *
-	 * @deprecated 2019.06 - use BaseURL->getScheme() instead
-	 */
-	public function getScheme()
-	{
-		return $this->baseURL->getScheme();
-	}
-
 	/**
 	 * Returns the current UserAgent as a String
 	 *