reduce to needed os settings

Author: johnteee

.travis.yml

@@ -18,54 +18,9 @@ matrix:
     # of the regex library's multiple pattern SIMD search.
     - os: linux
       go: master
-      env: TARGET=i686-unknown-linux-musl
-    - os: linux
-      go: master
-      env: TARGET=x86_64-unknown-linux-musl
     - os: osx
       go: master
-      # XML_CATALOG_FILES is apparently necessary for asciidoc on macOS.
-      env: TARGET=x86_64-apple-darwin XML_CATALOG_FILES=/usr/local/etc/xml/catalog
-    - os: linux
-      go: master
-      env: TARGET=arm-unknown-linux-gnueabihf GCC_VERSION=4.8
-      addons:
-        apt:
-          packages:
-          - gcc-4.8-arm-linux-gnueabihf
-          - binutils-arm-linux-gnueabihf
-          - libc6-armhf-cross
-          - libc6-dev-armhf-cross
-          # For generating man page.
-          - libxslt1-dev
-          - asciidoc
-          - docbook-xsl
-          - xsltproc
-          - libxml2-utils
-    # Minimum Rust supported channel. We enable these to make sure ripgrep
-    # continues to work on the advertised minimum Rust version.
-    - os: linux
-      go: 1.8
-      env: TARGET=x86_64-unknown-linux-gnu
-    - os: linux
-      go: 1.8
-      env: TARGET=x86_64-unknown-linux-musl
-    - os: linux
-      go: 1.8
-      env: TARGET=arm-unknown-linux-gnueabihf GCC_VERSION=4.8
-      addons:
-        apt:
-          packages:
-          - gcc-4.8-arm-linux-gnueabihf
-          - binutils-arm-linux-gnueabihf
-          - libc6-armhf-cross
-          - libc6-dev-armhf-cross
-          # For generating man page.
-          - libxslt1-dev
-          - asciidoc
-          - docbook-xsl
-          - xsltproc
-          - libxml2-utils
+
 notifications:
   email:
     on_success: never