Issue #3226008 by longwave, mondrake: Remove simple uses of t() in assertEquals() calls

...odules/comment/tests/src/Kernel/CommentValidationTest.php

...ules/contact/tests/src/Functional/ContactSitewideTest.php

...ion/tests/src/Functional/ContentTranslationEnableTest.php

core/modules/file/tests/src/Functional/DownloadTest.php

...modules/file/tests/src/Functional/FileManagedTestBase.php

...odules/search/tests/src/Functional/SearchPageTextTest.php

...y/tests/src/Functional/Views/TaxonomyRelationshipTest.php

.../modules/taxonomy/tests/src/Kernel/TermValidationTest.php

...odules/user/tests/src/Functional/UserAdminListingTest.php

...c/FunctionalJavascript/RegistrationWithUserFieldsTest.php

core/modules/user/tests/src/Kernel/UserValidationTest.php

...dules/views/tests/src/Kernel/Handler/FieldBooleanTest.php

...ts/Drupal/KernelTests/Core/Database/UpdateComplexTest.php

...pal/KernelTests/Core/Entity/EntityTypeConstraintsTest.php

...s/Drupal/KernelTests/Core/Entity/EntityValidationTest.php

...ts/Drupal/KernelTests/Core/Entity/FieldSqlStorageTest.php

.../tests/Drupal/KernelTests/Core/File/StreamWrapperTest.php

...s/Core/TypedData/AllowedValuesConstraintValidatorTest.php

...sts/Core/TypedData/ComplexDataConstraintValidatorTest.php