Revert "feat(selector): handle repeated key until release"

This reverts commit 8d93e9f.

Some clients (eg. Squirrel) don't pass keyup events to the IME,
resulting in consecutive Left keys being unable to pass through.

src/rime/gear/selector.cc

@@ -118,14 +118,8 @@ inline static bool is_linear_layout(Context* ctx) {
 }
 
 ProcessResult Selector::ProcessKeyEvent(const KeyEvent& key_event) {
-  if (key_event.release()) {
-    last_key_ = 0;
-    key_repeat_ = 0;
+  if (key_event.release() || key_event.alt())
     return kNoop;
-  }
-  if (key_event.alt() || key_event.super())
-    return kNoop;
-
   Context* ctx = engine_->context();
   if (ctx->composition().empty())
     return kNoop;
@@ -139,18 +133,11 @@ ProcessResult Selector::ProcessKeyEvent(const KeyEvent& key_event) {
     is_linear_layout(ctx) ? Linear : Stacked;
   auto result = KeyBindingProcessor::ProcessKeyEvent(
     key_event, ctx, text_orientation | candidate_list_layout);
-
-  int ch = key_event.keycode();
   if (result != kNoop) {
-    if (last_key_ == ch) {
-      ++key_repeat_;
-    } else {
-      last_key_ = ch;
-      key_repeat_ = 1;
-    }
     return result;
   }
 
+  int ch = key_event.keycode();
   int index = -1;
   const string& select_keys(engine_->schema()->select_keys());
   if (!select_keys.empty() &&
@@ -223,9 +210,8 @@ bool Selector::PreviousCandidate(Context* ctx) {
     return false;
   int index = comp.back().selected_index;
   if (index <= 0) {
-    // in case of linear layout, fall back to navigator;
-    // repeated key press should be handled by the same processor.
-    return !is_linear_layout(ctx) || key_repeat_ > 0;
+    // in case of linear layout, fall back to navigator
+    return !is_linear_layout(ctx);
   }
   comp.back().selected_index = index - 1;
   comp.back().tags.insert("paging");
@@ -270,6 +256,7 @@ bool Selector::End(Context* ctx) {
   return Home(ctx);
 }
 
+
 bool Selector::SelectCandidateAt(Context* ctx, int index) {
   Composition& comp = ctx->composition();
   if (comp.empty())

src/rime/gear/selector.h

@@ -37,10 +37,6 @@ class Selector : public Processor, public KeyBindingProcessor<Selector, 4> {
   Handler End;
 
   bool SelectCandidateAt(Context* ctx, int index);
-
- private:
-  int last_key_ = 0;
-  int key_repeat_ = 0;
 };
 
 }  // namespace rime