Don't double record stacktrace in Annotated*Exception (netty#9117)

Motivation:
When initializing the AnnotatedSocketException in AbstractChannel, both
the cause and the stack trace are set, leaving a trailing "Caused By"
that is compressed when printing the trace.

Modification:
Don't include the stack trace in the exception, but leave it in the cause.

Result:
Clearer stack trace

transport/src/main/java/io/netty/channel/AbstractChannel.java

@@ -1164,7 +1164,6 @@ private static final class AnnotatedConnectException extends ConnectException {
         AnnotatedConnectException(ConnectException exception, SocketAddress remoteAddress) {
             super(exception.getMessage() + ": " + remoteAddress);
             initCause(exception);
-            setStackTrace(exception.getStackTrace());
         }
 
         @Override
@@ -1180,7 +1179,6 @@ private static final class AnnotatedNoRouteToHostException extends NoRouteToHost
         AnnotatedNoRouteToHostException(NoRouteToHostException exception, SocketAddress remoteAddress) {
             super(exception.getMessage() + ": " + remoteAddress);
             initCause(exception);
-            setStackTrace(exception.getStackTrace());
         }
 
         @Override
@@ -1196,7 +1194,6 @@ private static final class AnnotatedSocketException extends SocketException {
         AnnotatedSocketException(SocketException exception, SocketAddress remoteAddress) {
             super(exception.getMessage() + ": " + remoteAddress);
             initCause(exception);
-            setStackTrace(exception.getStackTrace());
         }
 
         @Override