.travis.yml: alway upgrade pip

diff --git a/.travis.yml b/.travis.yml
index 0be2681..534aaaf 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -80,11 +80,7 @@ before_install:
 
 
 install:
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then travis_retry pip install nose2; fi
-  - |
-    if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
-      travis_retry pip install --upgrade pip nose2
-    fi;
+  - travis_retry pip install --upgrade pip nose2
   - which pip
   - pip --version