glsl: whitespace cleanups.

Signed-off-by: Timothy Arceri <t_arceri@yahoo.com.au>

v2 (Paul Berry <stereotype441@gmail.com>): Separate from "glsl: Add
check for unsized arrays to glsl types".

Reviewed-by: Paul Berry <stereotype441@gmail.com>

src/glsl/glsl_types.h

@@ -468,7 +468,6 @@ struct glsl_type {
 	 : error_type;
    }
 
-
    /**
     * Get the type of a structure field
     *
@@ -478,13 +477,11 @@ struct glsl_type {
     */
    const glsl_type *field_type(const char *name) const;
 
-
    /**
     * Get the location of a filed within a record type
     */
    int field_index(const char *name) const;
 
-
    /**
     * Query the number of elements in an array type
     *