Remove blank line of spaces

Author: hollasch

src/InOneWeekend/material.h

@@ -50,15 +50,15 @@ class dielectric : public material {
                 scattered = ray(rec.p, reflected);
                 return true;
             }
-            
+
             double reflect_prob = schlick(cos_theta, etai_over_etat);
             if (random_double() < reflect_prob)
             {
                 vec3 reflected = reflect(unit_direction, rec.normal);
                 scattered = ray(rec.p, reflected);
                 return true;
             }
-                
+
             vec3 refracted = refract(unit_direction, rec.normal, etai_over_etat);
             scattered = ray(rec.p, refracted);
             return true;