Restrict visiblity of contrib:accessibility_checks

PiperOrigin-RevId: 618026606

Author: brettchabot

espresso/contrib/java/androidx/test/espresso/contrib/BUILD

@@ -120,7 +120,6 @@ android_library(
         "AccessibilityChecks.java",
     ],
     deprecation = "use //espresso/accessibility/java/androidx/test/espresso/accessibility:accessibility_checks instead",
-    visibility = ["//visibility:public"],
     deps = [
         "//espresso/core/java/androidx/test/espresso",
         "@maven//:com_google_android_apps_common_testing_accessibility_framework_accessibility_test_framework",