Merge pull request #6367 from Citadel-Station-13/upstream-merge-37136

[MIRROR] Removes some unused math defines/procs

code/__DEFINES/maths.dm

@@ -3,11 +3,8 @@
 // (
 
 #define NUM_E 2.71828183
-#define NUM_SQRT2 1.41421356
 
 #define PI						3.1415
-#define SPEED_OF_LIGHT			3e8		//not exact but hey!
-#define SPEED_OF_LIGHT_SQ		9e+16
 #define INFINITY				1e31	//closer then enough
 
 #define SHORT_REAL_LIMIT 16777216

code/__HELPERS/unsorted.dm

@@ -345,16 +345,6 @@ Turf and target are separate in case you want to teleport some distance from a t
 		moblist.Add(M)
 	return moblist
 
-//E = MC^2
-/proc/convert2energy(M)
-	var/E = M*(SPEED_OF_LIGHT_SQ)
-	return E
-
-//M = E/C^2
-/proc/convert2mass(E)
-	var/M = E/(SPEED_OF_LIGHT_SQ)
-	return M
-
 // Format a power value in W, kW, MW, or GW.
 /proc/DisplayPower(powerused)
 	if(powerused < 1000) //Less than a kW