Update Dockerfile-core

Author: ar2rsawseen

Dockerfile-core

@@ -72,7 +72,7 @@ RUN useradd -r -M -U -d /opt/countly -s /bin/false countly && \
     chown -R countly:countly /opt/countly && \
     # cleanup
     npm remove -y --no-save mocha nyc should supertest && \
-    apt-get -y remove build-essential libkrb5-dev git sqlite3 wget \
+    apt-get -y remove build-essential libkrb5-dev sqlite3 wget \
         gcc g++ make binutils autoconf automake autotools-dev libtool pkg-config zlib1g-dev libcunit1-dev libssl-dev libxml2-dev libev-dev libevent-dev libjansson-dev libjemalloc-dev cython python3-dev python-setuptools && \
     apt-get -y install gconf-service libasound2 libatk1.0-0 libc6 libcairo2 libcups2 libdbus-1-3 libexpat1 libfontconfig1 libgcc1 libgconf-2-4 libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1 libxcb1 libxcomposite1 libxcursor1 libxdamage1 libxext6 libxfixes3 libxi6 libxrandr2 libxrender1 libxss1 libxtst6 ca-certificates fonts-liberation libappindicator1 libnss3 lsb-release xdg-utils && \
     apt-get clean && \