Remove deprecated sgx.require_* manifest options

[mkow]

Description of the changes

FYI: I'll submit some more cleanups to other deprecated stuff later.

How to test this PR?

CI.

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This change is 

[kailun-qin]

Reviewed 5 of 5 files at r1, all commit messages.
Reviewable status: all files reviewed, all discussions resolved, not enough approvals from maintainers (1 more required)

[dimakuv]

Reviewed 5 of 5 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion, not enough approvals from maintainers (1 more required) (waiting on @mkow)

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-- commits line 2 at r1:
Don't we want a prefix [Docs,PAL/Linux-SGX] ?

[mkow]

Reviewable status: all files reviewed, 1 unresolved discussion, not enough approvals from maintainers (1 more required) (waiting on @dimakuv)

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-- commits line 2 at r1:

Previously, dimakuv (Dmitrii Kuvaiskii) wrote…

Don't we want a prefix [Docs,PAL/Linux-SGX] ?

Or maybe just [PAL/Linux-SGX]? The docs update is just a result of the change in SGX PAL. I can do that when rebasing.

[dimakuv]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @mkow)

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-- commits line 2 at r1:

Previously, mkow (Michał Kowalczyk) wrote…

Or maybe just [PAL/Linux-SGX]? The docs update is just a result of the change in SGX PAL. I can do that when rebasing.

Ok, makes sense to me. I'm approving.

[mkow]

Reviewable status: 3 of 5 files reviewed, all discussions resolved (waiting on @dimakuv and @kailun-qin)

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-- commits line 2 at r1:

Previously, dimakuv (Dmitrii Kuvaiskii) wrote…

Ok, makes sense to me. I'm approving.

Done.

[dimakuv]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved

[kailun-qin]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved