CI: remove raco test stderr ignores that seem no longer necessary

Author: lexi-lambda

.travis.yml

@@ -8,9 +8,9 @@ env:
   matrix:
     - RACKET_VERSION=HEAD
 
-matrix:
-  allow_failures:
-    - env: RACKET_VERSION=HEAD
+# matrix:
+#   allow_failures:
+#     - env: RACKET_VERSION=HEAD
 
 before_install:
   - export DISPLAY=:99.0
@@ -27,10 +27,7 @@ install:
       $TRAVIS_BUILD_DIR/hackett-test
 
 script:
-  - 'raco test -e
-      ++ignore-stderr "^process \\d+: D-Bus library appears to be incorrectly set up"
-      ++ignore-stderr "^See the manual page for dbus-uuidgen to correct this issue.$"
-      -p hackett-demo hackett-lib hackett-test'
+  - raco test -ep hackett-demo hackett-lib hackett-test
 
 after_success:
   - bash deploy-docs.sh