Removed speedTestMode since it's not really meaningful

Author: Samuel Groß

Sources/Fuzzilli/Configuration.swift

@@ -16,13 +16,6 @@ public struct Configuration {
     /// Timeout in milliseconds after which child processes will be killed.
     public let timeout: UInt32
 
-    /// Enable "speed test" mode.
-    /// In that mode, the fuzzer runs as normal, but all programs
-    /// scheduled for execution are replaced by a predefined program.
-    /// This provides consistent execution speed of the generated samples
-    /// and is useful for evaluating the performance of the fuzzer itself.
-    public let speedTestMode: Bool
-    
     /// Log level to use.
     public let logLevel: LogLevel
 
@@ -77,7 +70,6 @@ public struct Configuration {
 
     public init(timeout: UInt32 = 250,
                 skipStartupTests: Bool = false,
-                speedTestMode: Bool = false,
                 logLevel: LogLevel = .info,
                 crashTests: [String] = [],
                 isMaster: Bool = false,
@@ -90,7 +82,6 @@ public struct Configuration {
                 enableDiagnostics: Bool = false,
                 inspection: InspectionOptions = []) {
         self.timeout = timeout
-        self.speedTestMode = speedTestMode
         self.logLevel = logLevel
         self.crashTests = crashTests
         self.isMaster = isMaster

Sources/Fuzzilli/Fuzzer.swift

@@ -381,12 +381,7 @@ public class Fuzzer {
         dispatchPrecondition(condition: .onQueue(queue))
         assert(runner.isInitialized)
 
-        let script: String
-        if config.speedTestMode {
-            script = lifter.lift(makeComplexProgram(), withOptions: .minify)
-        } else {
-            script = lifter.lift(program, withOptions: .minify)
-        }
+        let script = lifter.lift(program, withOptions: .minify)
 
         dispatchEvent(events.PreExecute, data: program)
         let execution = runner.run(script, withTimeout: timeout ?? config.timeout)
@@ -587,11 +582,6 @@ public class Fuzzer {
     public func runStartupTests() {
         assert(isInitialized)
 
-        guard !config.speedTestMode else {
-            logger.info("Skipping startup tests due to speed test mode")
-            return
-        }
-
         #if os(Linux)
         do {
             let corePattern = try String(contentsOfFile: "/proc/sys/kernel/core_pattern", encoding: String.Encoding.ascii)