chore(travis): removed coveralls support

.travis.yml

@@ -32,8 +32,6 @@ addons:
     branch_pattern: master
 
 before_install:
-  # install coveralls
-  - pip install --user cpp-coveralls
   # connect coverity
   - echo -n | openssl s_client -connect scan.coverity.com:443 | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' | sudo tee -a /etc/ssl/certs/ca-
 
@@ -61,7 +59,5 @@ script:
   - tmp/cov/test_suite
 
 after_success:
-  # Report to coveralls
-  - coveralls --build-root ${TRAVIS_BUILD_DIR} --include printf.cpp --gcov 'gcov-6' --gcov-options '\-lp'
   ## Report to codecov
   - bash <(curl -s https://codecov.io/bash)

README.md

@@ -2,9 +2,6 @@
 
 [![Build Status](https://travis-ci.org/mpaland/printf.svg?branch=master)](https://travis-ci.org/mpaland/printf)
 [![codecov](https://codecov.io/gh/mpaland/printf/branch/master/graph/badge.svg)](https://codecov.io/gh/mpaland/printf)
-<!---
-[![Coveralls Status](https://coveralls.io/repos/github/mpaland/printf/badge.svg?branch=master)](https://coveralls.io/github/mpaland/printf?branch=master)
--->
 [![Coverity Status](https://img.shields.io/coverity/scan/14180.svg)](https://scan.coverity.com/projects/mpaland-printf)
 [![Github Issues](https://img.shields.io/github/issues/mpaland/printf.svg)](http://github.com/mpaland/printf/issues)
 [![Github Releases](https://img.shields.io/github/release/mpaland/printf.svg)](https://github.com/mpaland/printf/releases)