remove NoActiveThread error

closes #130

src/stub/error.rs

@@ -36,13 +36,6 @@ pub enum GdbStubError<T, C> {
     /// `StopReason::HwBreak` if the hardware breakpoints IDET hasn't been
     /// implemented.
     UnsupportedStopReason,
-    /// Target didn't report any active threads when there should have been at
-    /// least one running.
-    #[deprecated(
-        since = "0.6.5",
-        note = "NoActiveThreads is no longer generated by gdbstub"
-    )]
-    NoActiveThreads,
 
     /// The target has not opted into using implicit software breakpoints.
     /// See [`Target::guard_rail_implicit_sw_breakpoints`] for more information.
@@ -100,8 +93,6 @@ where
             TargetMismatch => write!(f, "GDB client sent a packet with too much data for the given target."),
             TargetError(e) => write!(f, "Target threw a fatal error: {:?}", e),
             UnsupportedStopReason => write!(f, "Target responded with an unsupported stop reason."),
-            #[allow(deprecated)]
-            NoActiveThreads => write!(f, "Target didn't report any active threads when there should have been at least one running."),
 
             ImplicitSwBreakpoints => write!(f, "Warning: The target has not opted into using implicit software breakpoints. See `Target::guard_rail_implicit_sw_breakpoints` for more information."),
             MissingCurrentActivePidImpl => write!(f, "GDB client attempted to attach to a new process, but the target has not implemented support for `ExtendedMode::support_current_active_pid`"),