Revert "Add full test environment."

This reverts commit 30e513309f.

The python mysql module was removed from test-requires in favor
of test-options, but the work to actually use that was never
completed.  Revert the change so that mysql testing is actually
performed again.

Change-Id: Iaf35811cc748272229260f2dab95520995a69b44

tools/test-options

@@ -1 +0,0 @@
-MySQL-python

tools/test-requires

@@ -12,3 +12,4 @@ pylint==0.25.2
 sphinx>=1.1.2
 feedparser
 python-cinderclient
+MySQL-python

tox.ini

@@ -18,6 +18,7 @@ deps = -r{toxinidir}/tools/pip-requires
 commands = nosetests {posargs}
 
 [tox:jenkins]
+sitepackages = True
 downloadcache = ~/cache/pip
 
 [testenv:pep8]
@@ -37,9 +38,3 @@ setenv = NOSE_WITH_COVERAGE=1
 
 [testenv:venv]
 commands = {posargs}
-
-[testenv:full]
-sitepackages = True
-deps = -r{toxinidir}/tools/pip-requires
-       -r{toxinidir}/tools/test-requires
-       -r{toxinidir}/tools/test-options