remove phip-flow stuff from Dockerfile (#193)

Dockerfile

@@ -31,16 +31,3 @@ ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
 # install phippery
 RUN pip install git+https://github.com/matsengrp/[email protected]
-
-# install pre-build binary Bowtie1.3
-RUN curl -fksSL https://sourceforge.net/projects/bowtie-bio/files/bowtie/1.3.0/bowtie-1.3.1-linux-x86_64.zip \
-    --output bowtie-1.3.0-linux-x86_64.zip \
-    && unzip bowtie-1.3.0-linux-x86_64.zip \
-    && (cd /usr/bin/ && ln -s /bowtie-1.3.0-linux-x86_64/* ./)
-
-
-# install SAMtools
-RUN curl -fksSL https://github.com/samtools/samtools/releases/download/1.3.0/samtools-1.3.1.tar.bz2 | tar xj && \
-    cd samtools-1.3.0 && \
-    make all all-htslib && make install install-htslib
-