Default to an empty field for cubemap in the river and other water object builder script.

Templates/Empty/game/tools/riverEditor/riverEditorGui.cs

@@ -78,7 +78,6 @@ function RiverEditorGui::createRiver( %this )
       
       rippleTex = "art/water/ripple.dds";
       foamTex = "art/water/foam";
-      cubemap = "DefaultSkyCubemap";
       depthGradientTex = "art/water/depthcolor_ramp";
    };
    

Templates/Empty/game/tools/worldEditor/gui/objectBuilderGui.ed.gui

@@ -800,7 +800,6 @@ function ObjectBuilderGui::addWaterObjectFields(%this)
    %this.addField("rippleTex", "TypeImageFilename", "Ripple Texture", "art/water/ripple" );
    %this.addField("depthGradientTex", "TypeImageFilename", "Depth Gradient Texture", "art/water/depthcolor_ramp" );
    %this.addField("foamTex", "TypeImageFilename", "Foam Texture", "art/water/foam" );
-   %this.addField("cubemap", "TypeRealString", "Cubemap", "DefaultSkyCubemap" );
 }
 
 function ObjectBuilderGui::buildWaterBlock(%this)

Templates/Full/game/tools/riverEditor/riverEditorGui.cs

@@ -78,7 +78,6 @@ function RiverEditorGui::createRiver( %this )
       
       rippleTex = "art/water/ripple.dds";
       foamTex = "art/water/foam";
-      cubemap = "DefaultSkyCubemap";
       depthGradientTex = "art/water/depthcolor_ramp";
    };
    

Templates/Full/game/tools/worldEditor/gui/objectBuilderGui.ed.gui

@@ -800,7 +800,6 @@ function ObjectBuilderGui::addWaterObjectFields(%this)
    %this.addField("rippleTex", "TypeImageFilename", "Ripple Texture", "art/water/ripple" );
    %this.addField("depthGradientTex", "TypeImageFilename", "Depth Gradient Texture", "art/water/depthcolor_ramp" );
    %this.addField("foamTex", "TypeImageFilename", "Foam Texture", "art/water/foam" );
-   %this.addField("cubemap", "TypeRealString", "Cubemap", "DefaultSkyCubemap" );
 }
 
 function ObjectBuilderGui::buildWaterBlock(%this)