disable travis-ci on appveyor build-.* branches

.travis.yml

@@ -1,21 +1,3 @@
-language: c
-
-addons:
-  apt:
-    # https://github.com/SimonKagstrom/kcov/blob/master/INSTALL.md#user-content-ubuntu
-    packages: [shellcheck, binutils-dev, libcurl4-openssl-dev, zlib1g-dev, libdw-dev, libiberty-dev]
-
-matrix:
-  include:
-    - os: linux
-      install:
-        - KCOV_VERSION=34
-        - curl -fsSL https://github.com/SimonKagstrom/kcov/archive/v"$KCOV_VERSION".tar.gz | tar -C "$HOME" -zxf -
-        - pushd "$HOME/kcov-$KCOV_VERSION"
-        - cmake -DCMAKE_INSTALL_PREFIX=$HOME/.local .
-        - make install -j$(nproc)
-        - popd
-      script: kcov --exclude-pattern=travis.sh $PWD/coverage ./travis.sh
-      after_success: bash <(curl -s https://codecov.io/bash) -s $PWD/coverage
-    - os: osx
-      script: ./travis.sh
+branches:
+  except:
+  - /^build-/