remove multi-stage build

Author: flier

Dockerfile

@@ -2,7 +2,7 @@
 
 ARG UBUNTU_VERSION=24.04
 
-FROM ubuntu:${UBUNTU_VERSION} as build
+FROM ubuntu:${UBUNTU_VERSION}
 
 # Install dependencies
 
@@ -72,23 +72,6 @@ RUN <<EOT bash
     mv ${HYPERSCAN_DIR}/build/lib/lib*.a ${INSTALL_DIR}/lib/
 EOT
 
-FROM ubuntu:${UBUNTU_VERSION}
-
-# Install dependencies
-
-ENV DEBIAN_FRONTEND noninteractive
-
-# hadolint ignore=DL3008
-RUN <<EOT bash
-    apt-get update
-    apt-get install -y --no-install-recommends \
-        build-essential \
-        ca-certificates \
-        libpcap-dev \
-        pkg-config
-    rm -rf /var/lib/apt/lists/*
-EOT
-
 # Install golang
 
 ARG GO_VERSION=1.23.3
@@ -102,10 +85,6 @@ EOT
 
 ENV PATH="/usr/local/go/bin:${PATH}"
 
-ENV INSTALL_DIR=/dist
-
-COPY --from=build ${INSTALL_DIR} ${INSTALL_DIR}
-
 ENV PKG_CONFIG_PATH="${PKG_CONFIG_PATH}:${INSTALL_DIR}/lib/pkgconfig"
 
 # Add gohs code