docs: remove redundant 'set origin' section (#19243)
docs: remove redundant 'set origin' section (#19243)

* docs: fix remote push origin docs

* docs: remove redundant section

the 'git remote' text in the 'Getting the Code' section is better

seanchas116/electron,seanchas116/electron,seanchas116/electron,electron/electron,seanchas116/electron,electron/electron,bpasero/electron,bpasero/electron,electron/electron,gerhardberger/electron,seanchas116/electron,the-ress/electron,the-ress/electron,bpasero/electron,gerhardberger/electron,electron/electron,the-ress/electron,electron/electron,bpasero/electron,gerhardberger/electron,gerhardberger/electron,the-ress/electron,bpasero/electron,gerhardberger/electron,gerhardberger/electron,electron/electron,the-ress/electron,the-ress/electron,seanchas116/electron,bpasero/electron,the-ress/electron,gerhardberger/electron,bpasero/electron,electron/electron