[SSL] Remove api-shield reference from BYOCA file name

[RebeccaTamachiro]

PCX-11174

[github-actions[bot]]

This PR changes current filenames or deletes current files. Make sure you have redirects set up to cover the following paths:

• [ ] /ssl/client-certificates/byo-ca-api-shield/

[cloudflare-pages[bot]]

Deploying cloudflare-docs with    Cloudflare Pages

Latest commit:	9cb93ff
Status:	✅  Deploy successful!
Preview URL:	https://09f9bbd1.cloudflare-docs-7ou.pages.dev
Branch Preview URL:	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev

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[github-actions[bot]]

Files with changes (up to 15)

Original Link	Updated Link
https://developers.cloudflare.com/api-shield/security/mtls/	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev/api-shield/security/mtls/
https://developers.cloudflare.com/api-shield/security/mtls/byo-ca/	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev/api-shield/security/mtls/byo-ca/
https://developers.cloudflare.com/api-shield/security/mtls/configure/	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev/api-shield/security/mtls/configure/
https://developers.cloudflare.com/ssl/client-certificates/create-a-client-certificate/	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev/ssl/client-certificates/create-a-client-certificate/
https://developers.cloudflare.com/ssl/client-certificates/byo-ca/	https://rebecca-ssl-rename-byoca-fil.cloudflare-docs-7ou.pages.dev/ssl/client-certificates/byo-ca/