[CI/CMake] Remove cmake build from ci

.travis.yml

@@ -264,10 +264,7 @@ install:
   - cp -r $TRAVIS_BUILD_DIR/* libs/config
   - ./bootstrap.sh
   - ./b2 headers
-  - cd ..
-  - git clone -b $TRAVIS_BRANCH --depth 1 https://github.com/boostorg/config.git boost-config-standalone
-  - mkdir cmake-build
-
+ 
 script:
   - |-
     echo "using $TOOLSET : : $COMPILER ;" > ~/user-config.jam
@@ -275,9 +272,6 @@ script:
   - for CXXLOCAL in $CXXSTD; do  (cd libs/config/test && ../../../b2 config_info_travis_install toolset=$TOOLSET cxxstd=$CXXLOCAL $CXXSTD_DIALECT && echo With Standard Version $CXXLOCAL && ./config_info_travis && rm ./config_info_travis)  done
   - unset IFS
   - ./b2 -j3 libs/config/test toolset=$TOOLSET cxxstd=$CXXSTD $CXXSTD_DIALECT
-  - cd ../cmake-build
-  - cmake ../boost-config-standalone/test/cmake
-  - cmake --build .
 
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