Makefile: Drop support of unsupported Python 3.5 from manylinux build

Author: Henrich Lauko

Makefile

@@ -56,9 +56,6 @@ manylinux:
 	docker run -e PYTHON=/opt/python/cp38-cp38/bin/python \
 		--rm -v $(shell pwd):/io $(MANYLINUX_IMAGE) \
 		/io/scripts/bootstrap.sh
-	docker run \
-		--rm -v $(shell pwd):/io $(MANYLINUX_IMAGE) \
-		/opt/python/cp35-cp35m/bin/pip wheel /io -w /io/dist
 	docker run \
 		--rm -v $(shell pwd):/io $(MANYLINUX_IMAGE) \
 		/opt/python/cp36-cp36m/bin/pip wheel /io -w /io/dist