Refactor not to cal install nightly package

Author: atalman

windows/internal/install_nightly_package.bat

@@ -51,10 +51,7 @@ set "PATH=%CD%\Python%PYTHON_VERSION%\Scripts;%CD%\Python;%PATH%"
 pip install -q numpy protobuf "mkl>=2019"
 if errorlevel 1 exit /b 1
 
-if NOT "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
-    call internal\install_nightly_package.bat
-    if errorlevel 1 exit /b 1
-) else (
+if "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
     for /F "delims=" %%i in ('where /R "%PYTORCH_FINAL_PACKAGE_DIR:/=\%" *.whl') do pip install "%%i"
     if errorlevel 1 exit /b 1
 )
@@ -106,20 +103,16 @@ set CUDA_VER_MAJOR=%CUDA_VERSION:~0,-1%
 set CUDA_VER_MINOR=%CUDA_VERSION:~-1,1%
 set CUDA_VERSION_STR=%CUDA_VER_MAJOR%.%CUDA_VER_MINOR%
 
-if NOT "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
-    call internal\install_nightly_package.bat
-    if errorlevel 1 exit /b 1
-    goto smoke_test
-)
-
-for /F "delims=" %%i in ('where /R "%PYTORCH_FINAL_PACKAGE_DIR:/=\%" *.tar.bz2') do call conda install %CONDA_EXTRA_ARGS% -y "%%i" --offline
-if ERRORLEVEL 1 exit /b 1
+if "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
+    for /F "delims=" %%i in ('where /R "%PYTORCH_FINAL_PACKAGE_DIR:/=\%" *.tar.bz2') do call conda install %CONDA_EXTRA_ARGS% -y "%%i" --offline
+    if ERRORLEVEL 1 exit /b 1
 
-if "%CUDA_VERSION%" == "cpu" goto install_cpu_torch
+    if "%CUDA_VERSION%" == "cpu" goto install_cpu_torch
 
-:: We do an update --all here since that will install the dependencies for any package that's installed offline
-call conda update --all %CONDA_EXTRA_ARGS% -y -c pytorch -c defaults -c numba/label/dev
-if ERRORLEVEL 1 exit /b 1
+    :: We do an update --all here since that will install the dependencies for any package that's installed offline
+    call conda update --all %CONDA_EXTRA_ARGS% -y -c pytorch -c defaults -c numba/label/dev
+    if ERRORLEVEL 1 exit /b 1
+)
 
 goto smoke_test
 
@@ -168,10 +161,7 @@ echo "install and test libtorch"
 if "%VC_YEAR%" == "2017" powershell internal\vs2017_install.ps1
 if ERRORLEVEL 1 exit /b 1
 
-if NOT "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
-    call internal\install_nightly_package.bat
-    if errorlevel 1 exit /b 1
-) else (
+if "%PYTORCH_BUILD_VERSION%"=="%PYTORCH_BUILD_VERSION:dev=%" (
     for /F "delims=" %%i in ('where /R "%PYTORCH_FINAL_PACKAGE_DIR:/=\%" *-latest.zip') do 7z x "%%i" -otmp
     if ERRORLEVEL 1 exit /b 1
 )