Revert "Merge pull request #2931 from hornygranny/balancepass"

This reverts commit 94bff32fe5504ce45d68f3dcd89e43aebe293150, reversing
changes made to c38a69e8279bfd2b2c2466e1e3989759e11ed29a.

Conflicts:
	code/game/objects/items/weapons/grenades/flashbang.dm
	code/game/objects/items/weapons/handcuffs.dm
	code/modules/reagents/Chemistry-Recipes.dm

This reverts the 'combat reblanace', increasing stuntimes and the runspeed.