Remove constraints unnecessary since buster

* Build-Depends: Drop versioned constraint on python3-all.

Changes-By: deb-scrub-obsolete

debian/changelog

 python-aiostream (0.4.1-3) UNRELEASED; urgency=medium
 
   * Set upstream metadata fields: Bug-Database, Bug-Submit.
+  * Remove constraints unnecessary since buster:
+    + Build-Depends: Drop versioned constraint on python3-all.
 
  -- Debian Janitor <janitor@jelmer.uk>  Sat, 11 Sep 2021 07:47:41 -0000
 

debian/control

@@ -6,7 +6,7 @@ Uploaders: Debian Python Team <team+python@tracker.debian.org>
 Build-Depends:
 	debhelper-compat (= 13),
 	dh-python,
-	python3-all (>= 3.7),
+	python3-all,
 	python3-pytest-asyncio,
 	python3-pytest-runner
 Standards-Version: 4.5.1