Use serverDataFolderName in check-requirements-linux.sh (#208074)

* Use serverDataFolderName in check-requirements-linux.sh

* remove the (new) file check

build/gulpfile.reh.js

@@ -382,7 +382,6 @@ function packageTask(type, platform, arch, sourceFolderName, destinationFolderNa
 		} else if (platform === 'linux' || platform === 'alpine') {
 			result = es.merge(result,
 				gulp.src(`resources/server/bin/helpers/check-requirements-linux.sh`, { base: '.' })
-					.pipe(replace('@@SERVER_APPLICATION_NAME@@', product.serverApplicationName))
 					.pipe(rename(`bin/helpers/check-requirements.sh`))
 					.pipe(util.setExecutableBit())
 			);

resources/server/bin/helpers/check-requirements-linux.sh

@@ -18,22 +18,12 @@ set -e
 # Provides a way to skip the server requirements check from
 # outside the install flow. A system process can create this
 # file before the server is downloaded and installed.
-#
-# This check is duplicated between code-server-linux.sh and here
-# since remote container calls into this script directly quite early
-# before the usual server startup flow.
 if [ -f "/tmp/vscode-skip-server-requirements-check" ]; then
 	echo "!!! WARNING: Skipping server pre-requisite check !!!"
 	echo "!!! Server stability is not guaranteed. Proceed at your own risk. !!!"
 	exit 0
 fi
 
-# Default to legacy server if the following file is present.
-if [ -f "$HOME/@@SERVER_APPLICATION_NAME@@-use-legacy" ]; then
-    echo "!!! WARNING: Using legacy server due to the presence of $HOME/@@SERVER_APPLICATION_NAME@@-use-legacy !!!"
-    exit 100
-fi
-
 ARCH=$(uname -m)
 found_required_glibc=0
 found_required_glibcxx=0