Simplify getting the absolute path during build

scripts/tasks.bash

@@ -190,21 +190,12 @@ function binary-task() {
 	log "Binary: ${buildPath}/${binaryName}"
 }
 
-function absolute-path() {
-	local relative="${1}"; shift
-	if command -v realpath &> /dev/null ; then
-		realpath "${relative}"
-	else
-		readlink -f "${relative}"
-	fi
-}
-
 # Check if it looks like we are inside VS Code.
 function in-vscode () {
 	local dir="${1}" ; shift
 	local maybeVsCode
 	local dirName
-	maybeVsCode="$(absolute-path "${dir}/../../..")"
+	maybeVsCode="$(cd "${dir}/../../.." ; pwd -P)"
 	dirName="$(basename "${maybeVsCode}")"
 	if [[ "${dirName}" != "vscode" ]] ; then
 		return 1
@@ -219,10 +210,8 @@ function in-vscode () {
 }
 
 function main() {
-	local relativeRootPath
 	local rootPath
-	relativeRootPath="$(dirname "${0}")/.."
-	rootPath="$(absolute-path "${relativeRootPath}")"
+	rootPath="$(cd "$(dirname "${0}/..")" ; pwd -P)"
 
 	local task="${1}" ; shift
 	if [[ "${task}" == "ensure-in-vscode" ]] ; then