Replace file writes with new helper

src/core/extdata.cpp

@@ -92,12 +92,6 @@ bool Extdata::ExtractFile(const std::string& path, std::size_t index) const {
     /// Maximum amount of device files a device directory can hold.
     constexpr u32 DeviceDirCapacity = 126;
 
-    FileUtil::IOFile file(path, "wb");
-    if (!file) {
-        LOG_ERROR(Core, "Could not open file {}", path);
-        return false;
-    }
-
     u32 file_index = index + 1;
     u32 sub_directory_id = file_index / DeviceDirCapacity;
     u32 sub_file_id = file_index % DeviceDirCapacity;
@@ -120,12 +114,7 @@ bool Extdata::ExtractFile(const std::string& path, std::size_t index) const {
         return false;
     }
 
-    if (file.WriteBytes(data[0].data(), data[0].size()) != data[0].size()) {
-        LOG_ERROR(Core, "Write data failed (file: {})", path);
-        return false;
-    }
-
-    return true;
+    return FileUtil::WriteBytesToFile(path, data[0].data(), data[0].size());
 }
 
 ArchiveFormatInfo Extdata::GetFormatInfo() const {

src/core/importer.cpp

@@ -293,18 +293,7 @@ bool SDMCImporter::ImportSystemArchive(u64 id,
         return false;
     }
 
-    FileUtil::IOFile target(target_path, "wb");
-    if (!target) {
-        LOG_ERROR(Core, "Could not open {}", target_path);
-        return false;
-    }
-
-    if (target.WriteBytes(romfs.data(), romfs.size()) != romfs.size()) {
-        LOG_ERROR(Core, "Failed to write to {}", target_path);
-        return false;
-    }
-
-    return true;
+    return FileUtil::WriteBytesToFile(target_path, romfs.data(), romfs.size());
 }
 
 bool SDMCImporter::ImportSysdata(u64 id,

src/frontend/utilities.cpp

@@ -288,12 +288,8 @@ void UtilitiesDialog::RomFSExtractionTool() {
         }
 
         const auto& shared_romfs = Core::LoadSharedRomFS(data);
-        FileUtil::IOFile dest_file(destination.toStdString(), "wb");
-        if (dest_file.WriteBytes(shared_romfs.data(), shared_romfs.size()) != shared_romfs.size()) {
-            return false;
-        }
-
-        return true;
+        return FileUtil::WriteBytesToFile(destination.toStdString(), shared_romfs.data(),
+                                          shared_romfs.size());
     });
 }