make capnp only necessary if modifying generated files

scripts/earthly/install_protoc.sh

@@ -1,37 +0,0 @@
-#!/bin/bash
-SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
-PROTOC_VERSION="24.3" # Keep in sync with veilid-core/build.rs
-
-UNAME_M=$(uname -m)
-if [[ "$UNAME_M" == "x86_64" ]]; then 
-    PROTOC_ARCH=x86_64
-elif [[ "$UNAME_M" == "aarch64" ]]; then 
-    PROTOC_ARCH=aarch_64
-else 
-    echo Unsupported build architecture
-    exit 1
-fi 
-
-mkdir /tmp/protoc-install
-pushd /tmp/protoc-install
-curl -OL https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOC_VERSION/protoc-$PROTOC_VERSION-linux-$PROTOC_ARCH.zip
-unzip protoc-$PROTOC_VERSION-linux-$PROTOC_ARCH.zip
-if [ "$EUID" -ne 0 ]; then
-    if command -v checkinstall &> /dev/null; then 
-        sudo checkinstall --pkgversion=$PROTOC_VERSION -y cp -r bin include /usr/local/
-        cp *.deb ~
-    else 
-	sudo cp -r bin include /usr/local/
-    fi
-    popd
-    sudo rm -rf /tmp/protoc-install
-else
-    if command -v checkinstall &> /dev/null; then 
-        checkinstall --pkgversion=$PROTOC_VERSION -y cp -r bin include /usr/local/
-        cp *.deb ~
-    else 
-        cp -r bin include /usr/local/
-    fi
-    popd
-    rm -rf /tmp/protoc-install
-fi