Remove envShellEvent proposal usage #7824

Job	Run time
Create VSIX	2m 47s
Check Python types	1m 48s
Coverage (ubuntu-latest)	8m 46s
Tests (ubuntu-latest, 3.x, ts-unit)	3m 21s
Tests (ubuntu-latest, 3.x, python-unit)	2m 27s
Lint	2m 29s
Tests (ubuntu-latest, 3.x, venv)	3m 12s
Tests (ubuntu-latest, 3.x, single-workspace)	3m 4s
Tests (ubuntu-latest, 3.x, debugger)	2m 18s
Tests (ubuntu-latest, 3.x, functional)	2m 56s
Tests (windows-latest, 3.x, ts-unit)	8m 35s
Tests (windows-latest, 3.x, python-unit)	5m 12s
Tests (windows-latest, 3.x, venv)	9m 0s
Tests (windows-latest, 3.x, single-workspace)	6m 13s
Tests (windows-latest, 3.x, debugger)	8m 21s
Tests (windows-latest, 3.x, functional)	8m 2s
Smoke tests (ubuntu-latest)	3m 27s
Smoke tests (windows-latest)	4m 38s
	1h 26m 36s

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