[REFACTOR] completely remove old src

make/minimum_parallel.mk

@@ -0,0 +1,23 @@
+#------------------------------------------------------------------------
+# xgboost: minumum dependency configuration with Parallelization.
+# This configuration is standard but cannot run distributed computing.
+#
+# see config.mk for template.
+#------------------------------------------------------------------------
+
+# Whether enable openmp support, needed for multi-threading.
+USE_OPENMP = 1
+
+# whether use HDFS support during compile
+USE_HDFS = 0
+
+# whether use AWS S3 support during compile
+USE_S3 = 0
+
+# whether use Azure blob support during compile
+USE_AZURE = 0
+
+# Rabit library version,
+# - librabit.a Normal distributed version.
+# - librabit_empty.a Non distributed mock version,
+LIB_RABIT = librabit_empty.a