Makes cables not shock you for clicking on them with things that don't interact with cables

Created by: gbasood

Resolves #9625 (closed) Resolves #8461 (closed) Because NOTHING HAS DEFINED SIEMENS COEFFICIENTS that are not inherited So we could either change the siemens values of a bunch of different things, virtually every item we have in code OR we could just fucking remove this block, because why would clicking on a power cable with things that do not break the insulation matter

Cable ends will shock you the same as cables currently do. Normal pieces of cable will not shock you unless you are using tools on them.