Revert "Update libretro.h"

This reverts commit 2a0ec8d.

Author: inactive123

include/libretro.h

@@ -3519,26 +3519,6 @@ struct retro_core_option_v2_definition
     * in the retro_core_option_value array, otherwise will be
     * ignored */
    const char *default_value;
-
-   /* Specify the type this option represents so the frontend
-    * can present the user an alternative input method besides
-    * a limited list of possible values.
-    * > If set to "int", all values need to be integers
-    *   and a frontend with support for numerical input will
-    *   allow input of any number betwen the lowest and
-    *   highest defined value.
-    * > If set to "float", all values need to be numbers
-    *   and a frontend with support for numerical input will
-    *   allow input of any number betwen the lowest and
-    *   highest defined value.
-    * > If set to "bool", there should be only two values
-    *   "true" and "false" (label can be anything)
-    *   The frontend can choose to show a checkbox for it.
-    * > If NULL or set to "enum", the frontend will show
-    *   the list of values and input will be limited to them.
-    * Future versions of the specs could allow this for more
-    * types or to be "TYPE:MORE:OPTIONS" */
-   const char *type_info;
 };
 
 struct retro_core_options_v2