Properly clean up python directories (#4453)

#4053 changed the location of the build directory for python code, but the build.sh script was cleaning up the old location.

This PR updates the build script to address this.

Authors:
  - Chuck Hastings (https://github.com/ChuckHastings)

Approvers:
  - Bradley Dice (https://github.com/bdice)
  - Rick Ratzel (https://github.com/rlratzel)

URL: #4453

build.sh

@@ -87,19 +87,13 @@ HELP="$0 [<target> ...] [<flag> ...]
 "
 LIBCUGRAPH_BUILD_DIR=${LIBCUGRAPH_BUILD_DIR:=${REPODIR}/cpp/build}
 LIBCUGRAPH_ETL_BUILD_DIR=${LIBCUGRAPH_ETL_BUILD_DIR:=${REPODIR}/cpp/libcugraph_etl/build}
-PYLIBCUGRAPH_BUILD_DIR=${REPODIR}/python/pylibcugraph/_skbuild
-CUGRAPH_BUILD_DIR=${REPODIR}/python/cugraph/_skbuild
 CUGRAPH_SERVICE_BUILD_DIRS="${REPODIR}/python/cugraph-service/server/build
                             ${REPODIR}/python/cugraph-service/client/build
 "
 CUGRAPH_DGL_BUILD_DIR=${REPODIR}/python/cugraph-dgl/build
 
-# All python build dirs using _skbuild are handled by cleanPythonDir, but
-# adding them here for completeness
 BUILD_DIRS="${LIBCUGRAPH_BUILD_DIR}
             ${LIBCUGRAPH_ETL_BUILD_DIR}
-            ${PYLIBCUGRAPH_BUILD_DIR}
-            ${CUGRAPH_BUILD_DIR}
             ${CUGRAPH_SERVICE_BUILD_DIRS}
             ${CUGRAPH_DGL_BUILD_DIR}
 "
@@ -136,7 +130,7 @@ function cleanPythonDir {
     pushd $1 > /dev/null
     rm -rf dist dask-worker-space cugraph/raft *.egg-info
     find . -type d -name __pycache__ -print | xargs rm -rf
-    find . -type d -name _skbuild -print | xargs rm -rf
+    find . -type d -name build -print | xargs rm -rf
     find . -type d -name dist -print | xargs rm -rf
     find . -type f -name "*.cpp" -delete
     find . -type f -name "*.cpython*.so" -delete