Update java_tools-release.yml (#2941)

Drop `venv` creation and `pip install`. That needs more packages to be
installed to work, instead we'll update the release process to not
require any additional packages.

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diff --git a/pipelines/java_tools-release.yml b/pipelines/java_tools-release.yml
index c5c4a63..1d0fba8 100644
--- a/pipelines/java_tools-release.yml
+++ b/pipelines/java_tools-release.yml
@@ -50,9 +50,6 @@
 
       echo "+++ Preparing release notes and .zip files"
       cd scripts
-      python3 -m venv venv
-      source venv/bin/activate
-      pip3 install wget
       python3 release.py --artifacts "\$artifacts"
 
       echo "+++ Downloading github-release"