Remove tempest/tests/services/compute path

The unit tests of compute service clients are moved to
tempest/tests/lib/services/compute. So this patch removes
the old path.

Change-Id: I49c6ddc30875b5e9fd2ac27c47df9c6304d53e87
diff --git a/tempest/tests/services/compute/__init__.py b/tempest/tests/services/compute/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/tempest/tests/services/compute/__init__.py
+++ /dev/null