no longer include basholeveldb among default backends

GUIDE.md

@@ -109,6 +109,10 @@ Then Install `conda` (specifically the [miniconda distribution][miniconda]) and
 Build and Test
 --------------
 
+Note: as of May 2024, the [basho leveldb backend](https://github.com/basho/leveldb) is no longer included as a 
+default option because the project has not been actively developed for 5 years. You may add it back by exporting 
+an environment variable `DVID_BACKENDS` that includes the "basholeveldb" keyword.
+
  $ make dvid
 
  $ make test

Makefile

@@ -28,7 +28,8 @@ endif
 CONDA_BASE = $(shell conda info --base)
 
 ifndef DVID_BACKENDS
- DVID_BACKENDS = badger basholeveldb filestore gbucket swift ngprecomputed
+ DVID_BACKENDS = badger filestore ngprecomputed
+# DVID_BACKENDS = badger basholeveldb filestore gbucket swift ngprecomputed
  $(info Backend not specified. Using default value: DVID_BACKENDS="${DVID_BACKENDS}")
 endif
 

scripts/install-developer-dependencies.sh

@@ -25,7 +25,8 @@ else
  COMPILER_PACKAGE=gxx_linux-64
 fi
 
-CMD="conda install -y -c flyem-forge -c conda-forge snappy basholeveldb lz4-c go-cgo=${GO_VERSION} pkg-config ${COMPILER_PACKAGE}"
+CMD="conda install -y -c flyem-forge -c conda-forge snappy lz4-c go-cgo=${GO_VERSION} pkg-config ${COMPILER_PACKAGE}"
+# CMD="conda install -y -c flyem-forge -c conda-forge snappy basholeveldb lz4-c go-cgo=${GO_VERSION} pkg-config ${COMPILER_PACKAGE}"
 echo ${CMD}
 ${CMD}