diff --git a/fpdfsdk/pwl/cpwl_combo_box.cpp b/fpdfsdk/pwl/cpwl_combo_box.cpp
index 31ffd2a..6f89e7d 100644
--- a/fpdfsdk/pwl/cpwl_combo_box.cpp
+++ b/fpdfsdk/pwl/cpwl_combo_box.cpp
@@ -389,9 +389,7 @@
   // options.
   switch (nChar) {
     case pdfium::ascii::kReturn:
-      if (!SetPopup(!IsPopup())) {
-        return false;
-      }
+      SetPopup(!IsPopup());
       SetSelectText();
       return true;
     case pdfium::ascii::kSpace:
@@ -399,9 +397,7 @@
       // editable
       if (!HasFlag(PCBS_ALLOWCUSTOMTEXT)) {
         if (!IsPopup()) {
-          if (!SetPopup(/*bPopUp=*/true)) {
-            return false;
-          }
+          SetPopup(/*bPopUp=*/true);
           SetSelectText();
         }
         return true;
@@ -426,7 +422,7 @@
 
 void CPWL_ComboBox::NotifyLButtonDown(CPWL_Wnd* child, const CFX_PointF& pos) {
   if (child == m_pButton) {
-    (void)SetPopup(!m_bPopup);
+    SetPopup(!m_bPopup);
     // Note, |this| may no longer be viable at this point. If more work needs to
     // be done, check the return value of SetPopup().
   }
@@ -439,7 +435,7 @@
   SetSelectText();
   SelectAllText();
   m_pEdit->SetFocus();
-  (void)SetPopup(false);
+  SetPopup(false);
   // Note, |this| may no longer be viable at this point. If more work needs to
   // be done, check the return value of SetPopup().
 }
diff --git a/fpdfsdk/pwl/cpwl_combo_box.h b/fpdfsdk/pwl/cpwl_combo_box.h
index 4b97394..0d13b40 100644
--- a/fpdfsdk/pwl/cpwl_combo_box.h
+++ b/fpdfsdk/pwl/cpwl_combo_box.h
@@ -64,7 +64,7 @@
   void CreateListBox(const CreateParams& cp);
 
   // Returns |true| iff this instance is still allocated.
-  [[nodiscard]] bool SetPopup(bool bPopup);
+  bool SetPopup(bool bPopup);
 
   UnownedPtr<CPWL_Edit> m_pEdit;
   UnownedPtr<CPWL_CBButton> m_pButton;
diff --git a/testing/resources/javascript/xfa_specific/bug_1444238.evt b/testing/resources/javascript/xfa_specific/bug_1444238.evt
deleted file mode 100644
index adca35a..0000000
--- a/testing/resources/javascript/xfa_specific/bug_1444238.evt
+++ /dev/null
@@ -1,3 +0,0 @@
-mousedown,left,91,539
-mouseup,left,91,539
-charcode,32
diff --git a/testing/resources/javascript/xfa_specific/bug_1444238.in b/testing/resources/javascript/xfa_specific/bug_1444238.in
deleted file mode 100644
index 675178c..0000000
--- a/testing/resources/javascript/xfa_specific/bug_1444238.in
+++ /dev/null
@@ -1,149 +0,0 @@
-{{header}}
-{{object 1 0}} <<
-  /Type /Catalog
-  /Pages 2 0 R
-  /AcroForm 4 0 R
-  /OpenAction 40 0 R
->>
-endobj
-{{object 2 0}} <<
-  /Type /Pages
-  /Count 2
-  /Kids [
-    32 0 R
-    34 0 R
-  ]
->>
-endobj
-% Forms
-{{object 4 0}} <<
-  /XFA 43 0 R
-  /Fields [
-    10 0 R
-    11 0 R
-  ]
->>
-endobj
-% Fields
-{{object 10 0}} <<
-  /Type /Annot
-  /Subtype /Widget
-  /FT /Tx
-  /T (MyField5)
-  /V (myfield_5)
-  /Rect [0 500 600 600]
->>
-% Fields
-{{object 11 0}} <<
-  /T (MyField3)
-  /Parent 4 0 R
-  /Kids [12 0 R]
-  /Opt [(a) (b) (c) (d)]
-  /V [(a) (b) (c)]
->>
-endobj
-% Fields
-{{object 12 0}} <<
-  /Type /Annot
-  /Subtype /Widget
-  /FT /Ch
-  /Ff 131072
-  /Parent 11 0 R
-  /Kids [13 0 R]
->>
-endobj
-% Fields
-{{object 13 0}} <<
-  /Type /Annot
-  /Subtype /Widget
-  /Parent 12 0 R
-  /Rect [0 400 600 600]
->>
-endobj
-% Fields
-{{object 14 0}} <<
-  /Type /Annot
-  /Subtype /Widget
-  /Parent 12 0 R
-  /Rect [100 400 500 500]
->>
-endobj
-% Page number 2.
-{{object 32 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /MediaBox [0 0 612 792]
-  /Annots [13 0 R]
-
->>
-endobj
-{{object 34 0}} <<
-  /Type /Page
-  /Parent 2 0 R
-  /MediaBox [0 0 612 792]
-  /Annots [10 0 R]
->>
-endobj
-% Document JS Action
-{{object 40 0}} <<
-  /Type /Action
-  /S /JavaScript
-  /JS 41 0 R
->>
-endobj
-% JS program to exexute
-{{object 41 0}} <<
->>
-stream
-var f5 = this.getField("MyField5");
-var f3 = this.getField("MyField3");
-f3.setFocus();
-this.__defineGetter__("pageNum",function o(){f5.setFocus(); f3.borderStyle="dashed"; f3.setFocus();});
-endstream
-endobj
-{{object 43 0}} <<
-  {{streamlen}}
->>
-stream
-<?xml version="1.0" encoding="UTF-8"?>
-<xdp:xdp xmlns:xdp="http://ns.adobe.com/xdp/">
-<config></config>
-<template xmlns="http://www.xfa.org/schema/xfa-template/2.8/">
-  <subform layout="tb" locale="en_US">
-    <pageSet>
-      <pageArea id="Page1" name="Page1">
-        <contentArea h="268.939mm" w="203.2mm" x="6.35mm" y="6.35mm"/>
-        <medium long="792pt" short="612pt" stock="default"/>
-      </pageArea>
-    </pageSet>
-    <field h="9.0001mm" name="MyField3" w="47.625mm" x="120mm" y="120mm">
-      <ui>
-        <choiceList open="onEntry">
-          <border>
-            <edge/>
-          </border>
-        </choiceList>
-      </ui>
-      <items save="1">
-        <text>apples</text>
-        <text>bananas</text>
-        <text>pears</text>
-      </items>
-      <value>
-        <text>apples</text>
-      </value>
-      <event activity="preOpen">
-        <script contentType="application/x-javascript">
-            var aa = this.pageNum;
-        </script>
-      </event>
-    </field>
-  </subform>
-</template>
-</xdp:xdp>
-endstream
-endobj
-{{xref}}
-{{trailer}}
-{{startxref}}
-%%EOF