[CLEANUP] Remove all traces of named outlets code #7962

Job	Run time
Debug and Prebuilt (All Tests by Package + Canary Features)	4m 26s
Type Checking (current version)	59s
Linting	1m 22s
Type Checking (other supported versions) (4.9)	1m 5s
Type Checking (other supported versions) (5.0)	1m 50s
Type Checking (other supported versions) (next)	1m 42s
Blueprint Tests	9m 25s
Production (All Tests + Canary Features with Debug Render Tree)	3m 3s
Smoke tests (Full Ember Apps)	1m 19s
Browserstack Tests (Safari, Edge)	2m 29s
Production (All Tests + Canary Features)	3m 3s
Browser Tests (Firefox)	2m 41s
Node.js Tests	54s
Extend Prototypes	3m 25s
Deploy tags to npm	0s
Publish alpha from default branch	0s
Publish channel to s3	0s
Notify Discord	0s
	37m 43s

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