fix(theming): remove console warn for same primary and accent palettes

- This is not disallowed in the Material spec, so the warning should be removed

fixes #8260

Closes #8564

Author: EladBezalel

src/core/services/theming/theming.js

@@ -670,12 +670,6 @@ function generateTheme(theme, name, nonce) {
       }
     });
 
-
-    if (theme.colors.primary.name == theme.colors.accent.name) {
-      console.warn('$mdThemingProvider: Using the same palette for primary and' +
-                   ' accent. This violates the material design spec.');
-    }
-
     GENERATED[theme.name] = true;
   }