chore: removes Dockerfile

Removes the Dockerfile.
No longer needed for current build process.

Dockerfile

@@ -1,32 +0,0 @@
-FROM lochnair/alpine-sdk:latest
-
-USER root
-# Install required dependencies
-RUN apk add --no-cache \
-    bash \
-    curl \
-    gcc \
-    musl-dev \
-    libgcc \
-    lld \
-    openssl-dev \
-    pkgconfig \
-    make \
-    git \
-    rustup
-
-RUN GCC_TARGETS="aarch64-linux-musl arm-linux-musleabi armv7m-linux-musleabi armv7l-linux-musleabihf mips-linux-muslsf mips64-linux-musl mips64el-linux-musl mipsel-linux-muslsf x86_64-linux-musl" && \
-    for GCC_TARGET in $GCC_TARGETS; do \
-        TOOLCHAIN_URL="https://musl.cc/${GCC_TARGET}-cross.tgz"; \
-        wget -O- ${TOOLCHAIN_URL} | tar -xz -C /opt; \
-    done
-
-USER sdk
-
-# Install Rust and set up rustup
-RUN rustup-init -y && \
-    source $HOME/.cargo/env && \
-    rustup update nightly && \
-    rustup default nightly && \
-    rustup component add rust-src --toolchain nightly
-