Remove initial text line skipping in tasks (microsoft#136854)

Fixes microsoft#136585

Author: alexr00

src/vs/workbench/contrib/tasks/browser/terminalTaskSystem.ts

@@ -828,12 +828,7 @@ export class TerminalTaskSystem extends Disposable implements ITaskSystem {
 				this.logService.error('Task terminal process never got ready');
 			});
 			this.fireTaskEvent(TaskEvent.create(TaskEventKind.Start, task, terminal.instanceId));
-			let skipLine: boolean = (!!task.command.presentation && task.command.presentation.echo);
 			const onData = terminal.onLineData((line) => {
-				if (skipLine) {
-					skipLine = false;
-					return;
-				}
 				watchingProblemMatcher.processLine(line);
 				if (!delayer) {
 					delayer = new Async.Delayer(3000);
@@ -919,12 +914,7 @@ export class TerminalTaskSystem extends Disposable implements ITaskSystem {
 			let problemMatchers = await this.resolveMatchers(resolver, task.configurationProperties.problemMatchers);
 			let startStopProblemMatcher = new StartStopProblemCollector(problemMatchers, this.markerService, this.modelService, ProblemHandlingStrategy.Clean, this.fileService);
 			this.terminalStatusManager.addTerminal(task, terminal, startStopProblemMatcher);
-			let skipLine: boolean = (!!task.command.presentation && task.command.presentation.echo);
 			const onData = terminal.onLineData((line) => {
-				if (skipLine) {
-					skipLine = false;
-					return;
-				}
 				startStopProblemMatcher.processLine(line);
 			});
 			promise = new Promise<ITaskSummary>((resolve, reject) => {