Remove Sokoban luck penalties for things you can't cheat with

Jumping, Newton's 3rd Law hurtling, and throwing an iron ball:
attempting to do any of these in such a way that you would diagonally
pass between boulders/walls causes the Luck penalty. However, none of
these actually get you through the diagonal gap, thus they can't be used
to cheat and the penalty doesn't make sense.

doc/fixes37.0

@@ -106,6 +106,7 @@ default shk sell prompt to N (github #265)
 teach non-mindless monsters about the Castle trapdoors (github #265)
 always print a message when the hero teleports (github #265)
 always print a message when the hero level teleports (github #265)
+remove Sokoban luck penalties for actions you can't cheat with (github #260)
 
 
 Code Cleanup and Reorganization

src/apply.c

@@ -1808,7 +1808,6 @@ int magic; /* 0=Physical, otherwise skill level */
          * the effects of landing on the final position.
          */
         teleds(cc.x, cc.y, FALSE);
-        sokoban_guilt();
         nomul(-1);
         g.multi_reason = "jumping around";
         g.nomovemsg = "";

src/ball.c

@@ -967,7 +967,6 @@ xchar x, y;
         newsym(u.ux0, u.uy0); /* clean up old position */
         if (u.ux0 != u.ux || u.uy0 != u.uy) {
             spoteffects(TRUE);
-            sokoban_guilt();
         }
     }
 }

src/dothrow.c

@@ -842,7 +842,6 @@ boolean verbose;
         You("%s in the opposite direction.", range > 1 ? "hurtle" : "float");
     /* if we're in the midst of shooting multiple projectiles, stop */
     endmultishot(TRUE);
-    sokoban_guilt();
     uc.x = u.ux;
     uc.y = u.uy;
     /* this setting of cc is only correct if dx and dy are [-1,0,1] only */