Remove extraneous build.sh parameter

The `-l` flag was introduced in rapidsai#3504, but I don't see it being used anywhere. Seems safe to remove unless anyone else thinks otherwise.

build.sh

@@ -18,7 +18,7 @@ ARGS=$*
 REPODIR=$(cd $(dirname $0); pwd)
 
 VALIDARGS="clean libcudf cudf dask_cudf benchmarks tests libcudf_kafka cudf_kafka custreamz -v -g -n -l --allgpuarch --disable_nvtx --show_depr_warn --ptds -h --build_metrics --incl_cache_stats"
-HELP="$0 [clean] [libcudf] [cudf] [dask_cudf] [benchmarks] [tests] [libcudf_kafka] [cudf_kafka] [custreamz] [-v] [-g] [-n] [-h] [-l] [--cmake-args=\\\"<args>\\\"]
+HELP="$0 [clean] [libcudf] [cudf] [dask_cudf] [benchmarks] [tests] [libcudf_kafka] [cudf_kafka] [custreamz] [-v] [-g] [-n] [-h] [--cmake-args=\\\"<args>\\\"]
    clean                         - remove all existing build artifacts and configuration (start
                                    over)
    libcudf                       - build the cudf C++ code only
@@ -32,7 +32,6 @@ HELP="$0 [clean] [libcudf] [cudf] [dask_cudf] [benchmarks] [tests] [libcudf_kafk
    -v                            - verbose build mode
    -g                            - build for debug
    -n                            - no install step
-   -l                            - build legacy tests
    --allgpuarch                  - build for all supported GPU architectures
    --disable_nvtx                - disable inserting NVTX profiling ranges
    --show_depr_warn              - show cmake deprecation warnings

ci/benchmark/build.sh

@@ -98,11 +98,7 @@ conda list --show-channel-urls
 ################################################################################
 
 logger "Build libcudf..."
-if [[ "${BUILD_MODE}" == "pull-request" ]]; then
-    "$WORKSPACE/build.sh" clean libcudf cudf dask_cudf benchmarks tests --ptds
-else
-    "$WORKSPACE/build.sh" clean libcudf cudf dask_cudf benchmarks tests -l --ptds
-fi
+"$WORKSPACE/build.sh" clean libcudf cudf dask_cudf benchmarks tests --ptds
 
 ################################################################################
 # BENCHMARK - Run and parse libcudf and cuDF benchmarks

ci/gpu/build.sh

@@ -128,11 +128,7 @@ if [[ -z "$PROJECT_FLASH" || "$PROJECT_FLASH" == "0" ]]; then
     ################################################################################
 
     gpuci_logger "Build from source"
-    if [[ "${BUILD_MODE}" == "pull-request" ]]; then
-        "$WORKSPACE/build.sh" clean libcudf cudf dask_cudf libcudf_kafka cudf_kafka benchmarks tests --ptds
-    else
-        "$WORKSPACE/build.sh" clean libcudf cudf dask_cudf libcudf_kafka cudf_kafka benchmarks tests -l --ptds
-    fi
+    "$WORKSPACE/build.sh" clean libcudf cudf dask_cudf libcudf_kafka cudf_kafka benchmarks tests --ptds
 
     ################################################################################
     # TEST - Run GoogleTest
@@ -226,11 +222,7 @@ else
     install_dask
 
     gpuci_logger "Build python libs from source"
-    if [[ "${BUILD_MODE}" == "pull-request" ]]; then
-        "$WORKSPACE/build.sh" cudf dask_cudf cudf_kafka --ptds
-    else
-        "$WORKSPACE/build.sh" cudf dask_cudf cudf_kafka -l --ptds
-    fi
+    "$WORKSPACE/build.sh" cudf dask_cudf cudf_kafka --ptds
 
 fi