Fixing dead links (#5503)

* Fixed typo of 'confid.h' to 'config.h'

* Fixed broken links in docs

* Fixed a lot of dead links

* Removed all dead links that I could not find a replacement for

* Placed knops links back in

* Fixed plank keymaps so that they will compile for planck light

* Https doesn't work on knops.io

* tv44:budi now compiles

* s60_x:amnesia0287 now compiles

* Fixed allocation of key_combos so that narze keymap for planck can compile correctly

* Disabled rgb on ergodone and infinity

* Enabled tap dance so it compiles

* Added return statement so it compiles

* If compiling on light disable extra functionality

* Properly redefined variable so it compiles

* Remove remaining dead links

keyboards/fc980c/README.md

@@ -155,7 +155,7 @@ Datasheets
 - AD5258: http://www.analog.com/media/en/technical-documentation/data-sheets/AD5258.pdf
 - JST S5B-PH-SM4: http://www.jst-mfg.com/product/pdf/eng/ePH.pdf
 - Hirose UX60SC-MB-5S8: https://www.hirose.com/product/en/products/UX/UX60SC-MB-5S8%2880%29/
-- Tr(E42) for LED?: http://cj-elec.com/txUpfile/2013614923661845.pdf
+- Tr(E42) for LED?: http://www.bklighting.com/cimages/specs-758.pdf
 - TYU TU1252WNR-05S: http://php2.twinner.com.tw/files/goodjob/TY1252series.pdf