Remove work arounds for dispatch target events #122

Job	Run time
test-postgres (3.8, Django>=3.2,<3.3, false, --parallel)	15m 5s
test-postgres (3.11, Django>=4.2,<4.3, postgres:12, notz, false, --parallel)	9m 56s
test-postgres (3.10, Django>=4.1,<4.2, false, emailuser, --parallel)	13m 11s
test-postgres (3.10, git+https://github.com/django/django.git@stable/4.2.x#egg=Django, true, post...	17m 13s
test-postgres (3.10, git+https://github.com/django/django.git@main#egg=Django, true, postgres:12,...	16m 3s
test-postgres-elasticsearch6 (3.8, Django>=3.2,<3.3)	9m 31s
test-postgres-elasticsearch7 (3.8, Django>=4.1,<4.2, false)	8m 14s
test-mysql (3.8, Django>=3.2,<3.3, false)	24m 26s
test-mysql (3.10, Django>=4.2,<4.3, false, --parallel)	30m 40s
test-sqlite (3.9, Django>=4.1,<4.2)	11m 41s
test-sqlite-elasticsearch5 (3.8, Django>=3.2,<3.3)	7m 14s
test-sqlite-elasticsearch8 (3.10, Django>=4.2,<4.3, emailuser)	8m 17s
coverage	1m 54s
	2h 53m 25s

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