Remove trailing comma in function call

This trailing comma triggers php parse error. This will block wordpress
from starting up fully on php7.

Fixes #132

Author: philberty

settings.php

@@ -30,15 +30,15 @@
 		__( 'Color Scheme', 'mkaz_code_syntax_block' ),
 		'mkaz_code_syntax_block_color_scheme_field_callback',
 		'mkaz_code_syntax_block_settings',						// Section
-		'mkaz_code_syntax_block_color_scheme',					// Setting
+		'mkaz_code_syntax_block_color_scheme'					// Setting
 	);
 
 	add_settings_field(
 		'mkaz-code-syntax-default-lang',
 		__( 'Default Language', 'mkaz_code_syntax_block' ),
 		'mkaz_code_syntax_block_default_lang_field_callback',
 		'mkaz_code_syntax_block_settings',						// Section
-		'mkaz_code_syntax_block_color_scheme',					// Setting
+		'mkaz_code_syntax_block_color_scheme'					// Setting
 	);
 });