Remove tab-related text

tests/snapshots/output/changes_numbers.snapshot.txt

@@ -16,21 +16,7 @@
   16   fn area(rectangle: &Rectangle) -> u32 {
   17       rectangle.width * rectangle.height
   18   }
-  19   
+  19 + 
   20 + fn perimeter(rectangle: &Rectangle) -> u32 {
   21 +     (rectangle.width + rectangle.height) * 2
   22 + }
-  23 + 
-  24   // Tab alignment:
-  25   /*
-  26           Indent
-  27           1       2       3       4
-  28   1       ?
-  29   22      ?
-  30   333     ?
-  31   4444    ?
-  32   55555   ?
-  33   666666  ?
-  34   7777777 ?
-  35   88888888        ?
-  36 ~ */