appveyor: boost is not required anymore

appveyor.yml

@@ -37,8 +37,6 @@ before_build:
   - cd C:\
   - appveyor DownloadFile https://curl.haxx.se/download/curl-7.56.1.zip
   - 7z x -y curl-7.56.1.zip
-  - appveyor DownloadFile https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.7z
-  - 7z x -y boost_1_64_0.7z
 
 build: on
 
@@ -65,15 +63,6 @@ build_script:
     ) else (
       cmake --build . --target install --config Release
     )
-  - cd C:\boost_1_64_0
-  - set boost_dir=C:\boost_1_64_0
-  - set cores=%NUMBER_OF_PROCESSORS%
-  - set msvcver=msvc-14.1
-  - cd %boost_dir%
-  - bootstrap.bat
-  - b2 --with-system --with-date_time --j%cores% toolset=%msvcver% address-model=64 architecture=x86 link=static threading=multi runtime-link=shared --build-type=minimal stage --stagedir=stage/x64
-  - set BOOST_ROOT=%boost_dir%
-  - set BOOST_LIBRARYDIR=%boost_dir%\stage\x64\lib
   - cd %dronecode_sdk_dir%
   - cd example\takeoff_land
   - md build
@@ -118,7 +107,7 @@ build_script:
   - cd example\follow_me
   - md build
   - cd build
-  - cmake ..  -G "Visual Studio 15 2017 Win64" -DBoost_USE_STATIC_LIBS=ON
+  - cmake ..  -G "Visual Studio 15 2017 Win64"
   - if "%configuration%"=="Debug" (
       cmake --build . --config Debug
     ) else (