Remove unused code

Author: Matejkob

SwiftSyntaxDevUtils/Sources/swift-syntax-dev-utils/commands/Test.swift

@@ -98,11 +98,4 @@ struct TestExecutor {
       additionalEnvironment: [:]
     ).stdout
   }
-
-  /// This returns a path to the build examples folder.
-  /// Example: '<workingDir>/swift-syntax/Examples/.build/arm64-apple-macosx/debug
-  private func findExamplesBinPath() throws -> URL {
-    let stdOut = try findSwiftpmBinPath(packageDir: Paths.examplesDir)
-    return URL(fileURLWithPath: stdOut.trimmingCharacters(in: .whitespacesAndNewlines))
-  }
 }

SwiftSyntaxDevUtils/Sources/swift-syntax-dev-utils/common/Paths.swift

@@ -48,30 +48,6 @@ enum Paths {
       .appendingPathComponent("SwiftRefactorExtension.xcodeproj")
   }
 
-  static var workspaceDir: URL {
-    packageDir
-      .deletingLastPathComponent()
-  }
-
-  static var llvmDir: URL {
-    workspaceDir
-      .appendingPathComponent("llvm-project")
-      .appendingPathComponent("llvm")
-  }
-
-  static var litExec: URL {
-    llvmDir
-      .appendingPathComponent("utils")
-      .appendingPathComponent("lit")
-      .appendingPathComponent("lit.py")
-  }
-
-  static var python3Exec: URL {
-    get throws {
-      return try lookupExecutable(for: "python3")
-    }
-  }
-
   static var diffExec: URL {
     get throws {
       return try lookupExecutable(for: "diff")

SwiftSyntaxDevUtils/Sources/swift-syntax-dev-utils/common/ProcessRunner.swift

@@ -37,8 +37,6 @@ class SigIntListener {
 
 /// Provides convenience APIs for launching and gathering output from a subprocess
 public class ProcessRunner {
-  private static let serialQueue = DispatchQueue(label: "\(ProcessRunner.self)")
-
   private let process: Process
 
   public init(

SwiftSyntaxDevUtils/Sources/swift-syntax-dev-utils/common/SwiftPMBuilder.swift

@@ -64,11 +64,6 @@ struct SwiftPMBuilder {
     self.verbose = verbose
   }
 
-  func buildProduct(productName: String) throws {
-    logSection("Building product " + productName)
-    try build(packageDir: Paths.packageDir, name: productName, isProduct: true)
-  }
-
   func buildTarget(packageDir: URL, targetName: String) throws {
     logSection("Building target " + targetName)
     try build(packageDir: packageDir, name: targetName, isProduct: false)