Remove unneeded builds

Author: bording

.travis.yml

@@ -12,37 +12,13 @@ matrix:
     - os: linux
       dist: trusty
       sudo: required
-      env: RID=ubuntu.18.04-x64
+      env: RID=linux-musl-x64
     - os: linux
       dist: trusty
       sudo: required
-      env: RID=rhel-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=fedora-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=debian.9-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=alpine-x64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=alpine.3.9-x64
+      env: RID=linux-arm64
     - os: osx
       env: RID=osx
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=ubuntu.16.04-arm64
-    - os: linux
-      dist: trusty
-      sudo: required
-      env: RID=debian-arm64
 
 branches:
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Dockerfile.alpine.3.9-x64

@@ -6,7 +6,6 @@ RUN dpkg --add-architecture arm64
 
 RUN apt update \
 && apt -y install cmake pkg-config \
-   crossbuild-essential-arm64 \
-   libssl-dev:arm64
+   crossbuild-essential-arm64
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.debian.9-x64

@@ -2,6 +2,6 @@ FROM alpine:3.7
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-RUN apk add --no-cache bash build-base cmake openssl-dev
+RUN apk add --no-cache bash build-base cmake
 
 CMD ["/bin/bash", "-c", "./build.libgit2.sh"]

Dockerfile.fedora-x64

@@ -2,7 +2,7 @@ FROM ubuntu:14.04
 WORKDIR /nativebinaries
 COPY . /nativebinaries/
 
-RUN apt update && apt -y install libssl-dev pkg-config curl make gcc build-essential
+RUN apt update && apt -y install pkg-config curl make gcc build-essential
 
 RUN curl -L https://github.com/Kitware/CMake/releases/download/v3.15.4/cmake-3.15.4-Linux-x86_64.sh -o /tmp/cmake.sh && bash /tmp/cmake.sh --skip-license --prefix=/usr/local