Update SVGs with @paperboyo's super optimised versions
Add @peterboyos latest optimisations. Fix JCB and Discover card sprite generation
Remove empty <title/> and <desc/>
Remove paths that are not rendered, as exist outside viewbox
Merge branch 'master' into super-optimise-svgs
Merge branch 'master' into super-optimise-svgs
Merge branch 'master' into super-optimise-svgs
Merge branch 'master' into super-optimise-svgs
Merge branch 'master' into super-optimise-svgs
Merge pull request #5776 from guardian/super-optimise-svgs

Update SVGs with @paperboyo's super optimised versions