Allow manual activation of virtualenvs inside $(pyenv-root)/versions (#115)

bin/pyenv-sh-activate

@@ -67,7 +67,6 @@ venv="${versions}"
 
 # exit as success if some virtualenv outside from pyenv is already activated
 if [ -n "${VIRTUAL_ENV}" ]; then
-  if [[ "${VIRTUAL_ENV}" != "$(pyenv-root)/"* ]]; then
   if [ -z "${FORCE}" ]; then
     if [ -z "${QUIET}" ]; then
       echo "pyenv-virtualenv: virtualenv \`${VIRTUAL_ENV}' is already activated" 1>&2
@@ -75,7 +74,6 @@ if [ -n "${VIRTUAL_ENV}" ]; then
     echo "true"
     exit 0
   fi
-  fi
 fi
 
 if ! pyenv-virtualenv-prefix "${venv}" 1>/dev/null 2>&1; then