[ci] stop travis/appveyor

.travis.yml

-# OS: Linux + macOS ------------------------------------------------------------
-# tic documentation: https://docs.ropensci.org/tic/dev/
-
-matrix:
-  include:
-    - os: linux
-      r: release
-      env:
-      - BUILD_PKGDOWN=true
-    - os: osx
-      r: release
-    - os: linux
-      r: devel
-    - os: linux
-      r: oldrel
-    - os: osx
-      r: oldrel
-
-# meta -------------------------------------------------------------------------
-language: r
-cache:
-  - packages
-  - $HOME/.ccache
-  - $HOME/Library/Caches/Homebrew
-latex: false
-
-# environment variables --------------------------------------------------------
-
-env:
-  global:
-    - MAKEFLAGS="-j 2"
-
-# Stages -----------------------------------------------------------------------
-
-before_install:
-  - if [ "${TRAVIS_OS_NAME}" == "osx" ]; then brew install ccache; fi
-  - if [ "${TRAVIS_OS_NAME}" == "osx" ]; then export PATH="/usr/local/opt/ccache/libexec:$PATH"; fi
-  - echo -e "options(Ncpus = 8, repos = structure(c(CRAN = 'https://cloud.r-project.org/')))" > $HOME/.Rprofile
-  - mkdir -p $HOME/.R && echo -e 'CXX_STD = CXX14\n\nCC=ccache gcc -std=gnu99\nCXX=ccache g++\nCXX11=ccache g++ -std=gnu99\nCXX14=ccache g++ -std=gnu99\nC11=ccache g++\nC14=ccache g++\nFC=ccache gfortran\nF77=ccache gfortran' > $HOME/.R/Makevars
-  - mkdir -p $HOME/.ccache && echo -e 'max_size = 5.0G\nsloppiness = include_file_ctime\nhash_dir=false' > $HOME/.ccache/ccache.conf
-  - R -q -e 'if (!requireNamespace("remotes")) install.packages("remotes")'
-  - R -q -e 'if (getRversion() < "3.2" && !requireNamespace("curl")) install.packages("curl")'
-  - R -q -e 'remotes::install_github("ropensci/tic", upgrade = "always"); print(tic::dsl_load()); tic::prepare_all_stages()'
-  - R -q -e 'tic::before_install()'
-install:
-  - R -q -e 'tic::install()'
-before_script: R -q -e 'tic::before_script()'
-script: R -q -e 'tic::script()'
-after_success: R -q -e 'tic::after_success()'
-after_failure: R -q -e 'tic::after_failure()'
-before_deploy: R -q -e 'tic::before_deploy()'
-deploy:
-  provider: script
-  script: R -q -e 'tic::deploy()'
-  on:
-    all_branches: true
-after_deploy: R -q -e 'tic::after_deploy()'
-after_script: R -q -e 'tic::after_script()'
-
-# Custom user code -------------------------------------------------------------

appveyor.yml

-# tic documentation: https://docs.ropensci.org/tic/dev/
-
-# Download script file from GitHub
-init:
-  ps: |
-    $ErrorActionPreference = "Stop"
-    Invoke-WebRequest http://raw.github.com/krlmlr/r-appveyor/master/scripts/appveyor-tool.ps1 -OutFile "..\appveyor-tool.ps1"
-    Import-Module '..\appveyor-tool.ps1'
-
-install:
-  - ps: Bootstrap
-  - cmd: Rscript -e "writeLines('options(repos = \'https://cloud.r-project.org\')', '~/.Rprofile')"
-  - cmd: Rscript -e "getOption('repos')"
-  - cmd: Rscript -e "if (!requireNamespace('remotes')) install.packages('remotes', type = 'binary')"
-  - cmd: Rscript -e "if (getRversion() < '3.2' && !requireNamespace('curl')) install.packages('curl', type = 'binary')"
-  - cmd: Rscript -e "options(pkgType = 'binary'); remotes::install_github('ropensci/tic', upgrade = 'always'); print(tic::dsl_load()); tic::prepare_all_stages()"
-
-before_build: Rscript -e "tic::before_install()"
-build_script: Rscript -e "tic::install()"
-after_build: Rscript -e "tic::after_install()"
-before_test: Rscript -e "tic::before_script()"
-test_script: Rscript -e "tic::script()"
-on_success: Rscript -e "try(tic::after_success(), silent = TRUE)"
-on_failure: Rscript -e "tic::after_failure()"
-before_deploy: Rscript -e "tic::before_deploy()"
-deploy_script: Rscript -e "tic::deploy()"
-after_deploy: Rscript -e "tic::after_deploy()"
-on_finish: Rscript -e "tic::after_script()"
-# Custom user code -------------------------------------------------------------