Remove unused files

build.rs

@@ -1,7 +1,7 @@
 use system_deps;
 
 fn main() {
-    let sources = vec!["key", "mgr", "module", "versekey", "versification"];
+    let sources = vec!["mgr", "module", "versekey", "versification"];
     let deps = system_deps::Config::new().probe().unwrap();
 
     let mut build = cxx_build::bridge("src/cxx/mod.rs");

src/cxx/key.cc

@@ -1,35 +0,0 @@
-#include "key.h"
-
-namespace sword_rs {
-    uint8_t Key::get_error() const {
-        return this->getError();
-    }
-
-    rust::String Key::get_locale() const {
-        return rust::String(this->getLocale());
-    }
-
-    rust::String Key::get_range_text() const {
-        return rust::String(this->getRangeText());
-    }
-
-    rust::String Key::get_short_text() const {
-        return rust::String(this->getShortText());
-    }
-
-    rust::String Key::get_text() const {
-        return rust::String(this->getText());
-    }
-
-    uint8_t Key::pop_error() {
-        return this->popError();
-    }
-
-    void Key::set_locale(const rust::String &locale) {
-        this->setLocale(std::string(locale).c_str());
-    }
-
-    void Key::set_text(const rust::String &text) {
-        this->setText(std::string(text).c_str());
-    }
-}

src/cxx/key.h

@@ -1,21 +0,0 @@
-#pragma once
-
-#include <sword/swkey.h>
-
-#include "rust/cxx.h"
-
-namespace sword_rs {
-    class Key : public sword::SWKey {
-        public:
-            uint8_t get_error() const;
-            rust::String get_locale() const;
-            rust::String get_range_text() const;
-            rust::String get_short_text() const;
-            rust::String get_text() const;
-
-            uint8_t pop_error();
-
-            void set_locale(const rust::String &locale);
-            void set_text(const rust::String &text);
-    };
-}