travis.yml: Drop the Python 3.5 build

We are soon going to remove the support for Python 3.5. So remove
the CI job now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200922070441.48844-1-thuth@redhat.com>
Message-Id: <20200925154027.12672-9-alex.bennee@linaro.org>

.travis.yml

@@ -253,15 +253,6 @@ jobs:
         - TEST_CMD=""
 
 
-    # Python builds
-    - name: "GCC Python 3.5 (x86_64-softmmu)"
-      env:
-        - CONFIG="--target-list=x86_64-softmmu"
-        - CACHE_NAME="${TRAVIS_BRANCH}-linux-gcc-default"
-      language: python
-      python: 3.5
-
-
     # Using newer GCC with sanitizers
     - name: "GCC9 with sanitizers (softmmu)"
       dist: bionic