Sema: remove some incorrect calls to `requireRuntimeBlock`
Most calls to `requireRuntimeBlock` in Sema are not correct. This
function doesn't deal with all of them, but it does deal with ones which
have, in combination with the past few commits, introduced real-world
regressions.
Related: #22353
7e82398cfemlugg committed on 12/31/2024, 9:55:03 AMparentd6120cf