Remove unnecessary delete checks (#318)

src/CBot/CBotToken.cpp

@@ -105,7 +105,7 @@ void CBotToken::Free()
 
 const CBotToken& CBotToken::operator=(const CBotToken& src)
 {
-    if (m_next != NULL) delete(m_next);
+    delete m_next;
     m_next      = NULL;
     m_prev      = NULL;
 

src/common/iman.cpp

@@ -42,9 +42,7 @@ void CInstanceManager::Flush()
 {
     for (int i = 0; i < CLASS_MAX; i++)
     {
-        if (m_table[i].instances != nullptr)
-            delete[] m_table[i].instances;
-
+        delete[] m_table[i].instances;
         m_table[i].instances = nullptr;
     }
 }

src/common/singleton.h

@@ -62,10 +62,7 @@ public:
     static void ReplaceInstance(T* newInstance)
     {
         assert(newInstance != nullptr);
-
-        if (m_instance != nullptr)
-            delete m_instance;
-
+        delete m_instance;
         m_instance = newInstance;
     }
     #endif

src/sound/oalsound/alsound.cpp

@@ -58,20 +58,14 @@ void ALSound::CleanUp()
             delete channel.second;
         }
 
-        if (m_currentMusic)
-        {
-            delete m_currentMusic;
-        }
-        
+        delete m_currentMusic;
+
         for (auto item : m_oldMusic)
         {
             delete item.music;
         }
-        
-        if (m_previousMusic.music)
-        {
-            delete m_previousMusic.music;
-        }
+
+        delete m_previousMusic.music;
 
         for (auto item : m_sounds)
         {

src/ui/interface.cpp

@@ -49,11 +49,8 @@ void CInterface::Flush()
 {
     for (int i = 0; i < MAXCONTROL; i++)
     {
-        if (m_table[i] != nullptr)
-        {
-            delete m_table[i];
-            m_table[i] = nullptr;
-        }
+        delete m_table[i];
+        m_table[i] = nullptr;
     }
 }