Revert "python-3.7.6: Build hic2cool from source"

This reverts commit 5e93e04.

The requirements of hic2cool have been updated and we can fetch it with
pip again [1] [2]

[1]: https://github.com/4dn-dcic/hic2cool/issues/46
[2]: https://github.com/4dn-dcic/hic2cool/releases/tag/0.8.2

python-3.7.6-0.build.sh

@@ -202,6 +202,7 @@ pip3 install --prefix=$PREFIX HTSeq
 pip3 install --prefix=$PREFIX keras
 pip3 install --prefix=$PREFIX MotifScan      # Alena 30.8.2018
 pip3 install --prefix=$PREFIX MAmotif
+pip3 install --prefix=$PREFIX hic2cool       # Helpdesk Robert Schoepflin 17.09.2018
 #pip3 install --prefix=$PREFIX hifive       # only python 2.7+
 pip3 install --prefix=$PREFIX snakemake
 pip3 install --prefix=$PREFIX virtualenv     # Donald
@@ -308,41 +309,6 @@ pip3 install --prefix=$PREFIX multiqc
 	python3 setup.py install --prefix $PREFIX
 )
 
-# hic2cool # Helpdesk Robert Schoepflin 17.09.2018
-# build from source to avoid downgrading other packages (scipy, numpy)
-(
-	HICVERS=0.8.0
-
-	. ${PREFIX}/profile
-	cd $BUILDDIR
-	test -e hic2cool-${HICVERS}.tar.gz || wget https://github.com/4dn-dcic/hic2cool/archive/${HICVERS}/hic2cool-${HICVERS}.tar.gz
-	test -d hic2cool-${HICVERS} || tar -xf hic2cool-${HICVERS}.tar.gz
-
-	cd hic2cool-${HICVERS}
-
-	if $( grep '==' requirements.txt >/dev/null ); then
-	patch -p1 <<'EOFHIC'
-diff --git a/requirements.txt b/requirements.txt
-index d7e701b..9d3a01c 100644
---- a/requirements.txt
-+++ b/requirements.txt
-@@ -1,5 +1,5 @@
--h5py==2.8.0
--pandas==0.24.2
--numpy==1.16.3
--scipy==1.2.1
--cooler==0.8.5
-+h5py
-+pandas
-+numpy
-+scipy
-+cooler
-EOFHIC
-fi
-	pip3 install -r requirements.txt --prefix ${PREFIX}
-	python3 setup.py install --prefix ${PREFIX}
-)
-
 #tensorflow
 (
 	TFVERSION=2.1.0