[CI] remove texlive-latex-base texlive-binaries ghostscript to ensure use of MathJax

.dockers/ubuntu-14.04/Dockerfile

@@ -40,8 +40,8 @@ RUN apt-get update -qqy && apt-get install -qqy \
    ros-indigo-pr2-description \
    source-highlight \
    wget \
-   && apt-get remove -qqy texlive \
-   && apt-get autoremove \
+   && apt-get remove -qqy texlive-latex-base texlive-binaries ghostscript \
+   && apt-get autoremove -qqy \
    && rm -rf /var/lib/apt/lists/*
 
 COPY auto-install-hpp.sh /

.dockers/ubuntu-14.04/Dockerfile.premade

@@ -7,4 +7,4 @@ RUN /auto-install-hpp.sh --branch ubuntu-14.04 --target \
                      OpenSceneGraph-dae-plugin.install \
                      qpOASES.install \
                      eigen3.install \
-                     roboptim-trajectory.install
+                     roboptim-trajectory.install"

.dockers/ubuntu-16.04/Dockerfile

@@ -50,8 +50,8 @@ RUN apt-get install -qqy \
       libopenscenegraph-dev \
       openscenegraph \
       libpcre3-dev \
-      && apt-get remove -qqy texlive \
-      && apt-get autoremove \
+   && apt-get remove -qqy texlive-latex-base texlive-binaries ghostscript \
+      && apt-get autoremove -qqy \
       && rm -rf /var/lib/apt/lists/*
 
 COPY auto-install-hpp.sh /