removed unneeded part in dockerfile

Author: abdullah-ukaea

Dockerfile

@@ -24,14 +24,6 @@ RUN curl -fsSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key \
       http://packages.ros.org/ros2/ubuntu noble main" \
     > /etc/apt/sources.list.d/ros2.list
 
-# Pre-fetch libcap-dev over HTTPS, install via apt; fallback to dpkg + fix
-RUN wget -O /tmp/libcap-dev_2.66-5ubuntu2.2_amd64.deb \
-      https://security.ubuntu.com/ubuntu/pool/main/libc/libcap2/libcap-dev_2.66-5ubuntu2.2_amd64.deb \
-&& apt-get update -y \
-&& (apt-get install -y /tmp/libcap-dev_2.66-5ubuntu2.2_amd64.deb \
-     || (dpkg -i /tmp/libcap-dev_2.66-5ubuntu2.2_amd64.deb && apt-get -f install -y)) \
-&& rm -f /tmp/libcap-dev_2.66-5ubuntu2.2_amd64.deb
-
 RUN apt-get update -y \
  && apt-get install -y --no-install-recommends \
       ros-${ROS_DISTRO}-ros-base \