Removed support for MacOS configuration

.travis.yml

@@ -60,23 +60,6 @@ matrix:
       - GTEST_VERSION=1.8.1
       - OPENSSL_VERSION=1.0.2s
 
-  - os: osx
-    osx_image: xcode12.2
-    language: cpp
-    compiler: clang   
-    env:
-      - COMPILER_NAME=clang-MacOS
-      - BUILD_TYPE=Release
-      - CONAN_BUILD_TYPE=Release
-      - COMPILER_LIBCXX=libc++
-      - GTEST_VERSION=1.8.1
-      - OPENSSL_VERSION=1.0.2s
-      - HOMEBREW_NO_AUTO_UPDATE=1
-    cache:
-      directories:
-        - $HOME/Library/Caches/Homebrew
-        - /usr/local/Homebrew
-
 install: 
   - if [ $TRAVIS_OS_NAME == linux ]; then sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 90; fi
   - if [ $TRAVIS_OS_NAME == linux ]; then sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 90; fi
@@ -85,7 +68,7 @@ install:
   - if [ $TRAVIS_OS_NAME == osx ]; then brew unlink python@2; fi
   - if [ $TRAVIS_OS_NAME == osx ]; then brew install conan; fi
   - conan user
-  - conan remote add systelab-public https://csw.jfrog.io/artifactory/api/conan/cpp-conan-production-local
+  - conan remote add systelab-public https://csw.jfrog.io/artifactory/api/conan/cpp-conan-production-local --insert 0
   - conan --version
 
 script: