Remove exclude for diffpy.structrue.tests in pyproject

Author: bobleesj

pyproject.toml

@@ -45,7 +45,6 @@ dirty_template = "{tag}"
 [tool.setuptools.packages.find]
 where = ["src"]  # list of folders that contain the packages (["."] by default)
 include = ["*"]  # package names should match these glob patterns (["*"] by default)
-exclude = ["diffpy.structure.tests*"]  # exclude packages matching these glob patterns (empty by default)
 namespaces = false  # to disable scanning PEP 420 namespaces (true by default)
 
 [tool.setuptools.dynamic]