Remove azure hacks

Author: isuruf

recipe/bld.bat

@@ -4,13 +4,6 @@ REM brand Python with conda-forge startup message
 REM %SYS_PYTHON% %RECIPE_DIR%\brand_python.py
 REM if errorlevel 1 exit 1
 
-set VSINSTALLDIR=
-
-if "%CI%"=="azure" (
-   call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x86_x64 -vcvars_ver=14.0   
-   set "MSBUILDDEFAULTTOOLSVERSION=14.0"
-)
-
 REM Compile python, extensions and external libraries
 if "%ARCH%"=="64" (
    set PLATFORM=x64