Update old doc comments

Source/Engine/Content/Upgraders/AudioClipUpgrader.h

@@ -13,12 +13,9 @@
 class AudioClipUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="AudioClipUpgrader"/> class.
-    /// </summary>
     AudioClipUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };

Source/Engine/Content/Upgraders/FontAssetUpgrader.h

@@ -13,12 +13,9 @@
 class FontAssetUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="FontAssetUpgrader"/> class.
-    /// </summary>
     FontAssetUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };

Source/Engine/Content/Upgraders/MaterialInstanceUpgrader.h

@@ -13,12 +13,9 @@
 class MaterialInstanceUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="MaterialInstanceUpgrader"/> class.
-    /// </summary>
     MaterialInstanceUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };

Source/Engine/Content/Upgraders/ShaderAssetUpgrader.h

@@ -13,12 +13,9 @@
 class ShaderAssetUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="ShaderAssetUpgrader"/> class.
-    /// </summary>
     ShaderAssetUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };

Source/Engine/Content/Upgraders/SkeletonMaskUpgrader.h

@@ -13,12 +13,9 @@
 class SkeletonMaskUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="SkeletonMaskUpgrader"/> class.
-    /// </summary>
     SkeletonMaskUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };

Source/Engine/Content/Upgraders/TextureAssetUpgrader.h

@@ -13,12 +13,9 @@
 class TextureAssetUpgrader : public BinaryAssetUpgrader
 {
 public:
-    /// <summary>
-    /// Initializes a new instance of the <see cref="TextureAssetUpgrader"/> class.
-    /// </summary>
     TextureAssetUpgrader()
     {
-        static const Upgrader upgraders[] =
+        const Upgrader upgraders[] =
         {
             {},
         };