Drop unnecessary wheel build dependency

Wheel is included automatically when needed, so simplify the backend
deps accordingly.

diff --git a/pyproject.toml b/pyproject.toml
index fefddad..01b888b 100644 (file)
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,5 +3,5 @@
 # provided in the LICENSE file distributed with this software.
 
 [build-system]
-requires = ["pbr>=5.8.0", "setuptools>=36.6.0", "wheel"]
+requires = ["pbr>=5.8.0", "setuptools>=36.6.0"]
 build-backend = "pbr.build"