Record coverage on Python 3.8 too

ci.sh

@@ -267,14 +267,10 @@ else
         netsh winsock reset
     fi
 
-    # Disable coverage on 3.8 until we run 3.8 on Windows CI too
-    #   https://github.com/python-trio/trio/pull/784#issuecomment-446438407
-    if [[ "$(python -V)" = Python\ 3.8* ]]; then
-        true;
     # coverage is broken in pypy3 7.1.1, but is fixed in nightly and should be
     # fixed in the next release after 7.1.1.
     # See: https://bitbucket.org/pypy/pypy/issues/2943/
-    elif [[ "$TRAVIS_PYTHON_VERSION" = "pypy3" ]]; then
+    if [[ "$TRAVIS_PYTHON_VERSION" = "pypy3" ]]; then
         true;
     else
         # Flag pypy and cpython coverage differently, until it settles down...