Revert "Update new_editor inspector layout and host rendering"

This reverts commit 5d81a64ef3.

new_editor/include/XCEditor/Fields/UIEditorPropertyGrid.h

@@ -198,7 +198,6 @@ struct UIEditorPropertyGridMetrics {
     float horizontalPadding = 12.0f;
     float sectionHeaderHorizontalPadding = 6.0f;
     float controlColumnStart = 236.0f;
-    float sharedControlColumnMinWidth = 0.0f;
     float labelControlGap = 20.0f;
     float disclosureExtent = 12.0f;
     float disclosureLabelGap = 8.0f;