don't rely on GTUtilities fluid methods

as I figured out in my latest GT refactoring, they don't have any special fluid handling so we don't lose any profit by using our own implementation only

Author: danyadev

src/main/java/com/cleanroommc/modularui/utils/fluid/FluidInteractions.java

@@ -9,7 +9,6 @@
 import net.minecraftforge.fluids.IFluidTank;
 
 import codechicken.nei.recipe.StackInfo;
-import gregtech.api.util.GTUtility;
 
 public class FluidInteractions {
 
@@ -24,27 +23,14 @@ public static FluidStack getFluidForItem(ItemStack itemStack) {
         if (fluidStack == null && ModularUI.Mods.NEI.isLoaded()) {
             fluidStack = StackInfo.getFluid(itemStack);
         }
-        if (fluidStack == null && ModularUI.Mods.GT5U.isLoaded()) {
-            fluidStack = GTUtility.getFluidForFilledItem(itemStack, false);
-        }
         return fluidStack;
     }
 
     public static ItemStack getFullFluidContainer(ItemStack itemStack, FluidStack fluidToFill) {
-        ItemStack filledContainer = null;
-
-        if (ModularUI.Mods.GT5U.isLoaded()) {
-            filledContainer = GTUtility.fillFluidContainer(fluidToFill, itemStack, false, false);
-        }
-
-        if (filledContainer == null && itemStack.getItem() instanceof IFluidContainerItem container) {
+        if (itemStack.getItem() instanceof IFluidContainerItem container) {
             FluidStack containerFluid = container.getFluid(itemStack);
             int containerFluidAmount = containerFluid != null ? containerFluid.amount : 0;
 
-            if (containerFluid != null && containerFluid.getFluid() != fluidToFill.getFluid()) {
-                return null;
-            }
-
             ItemStack copyStack = itemStack.copy();
             int filled = container.fill(copyStack, fluidToFill, true);
 
@@ -55,27 +41,20 @@ public static ItemStack getFullFluidContainer(ItemStack itemStack, FluidStack fl
             return null;
         }
 
-        if (filledContainer == null) {
-            filledContainer = FluidContainerRegistry.fillFluidContainer(fluidToFill, itemStack);
-        }
-
-        return filledContainer;
+        return FluidContainerRegistry.fillFluidContainer(fluidToFill, itemStack);
     }
 
     public static ItemStack getEmptyFluidContainer(ItemStack itemStack) {
-        if (ModularUI.Mods.GT5U.isLoaded()) {
-            ItemStack stack = GTUtility.getContainerForFilledItem(itemStack, false);
-            if (stack != null) {
-                return stack;
+        if (itemStack.getItem() instanceof IFluidContainerItem container) {
+            FluidStack fluidStack = container.getFluid(itemStack);
+            if (fluidStack == null) {
+                return null;
             }
-        }
 
-        if (itemStack.getItem() instanceof IFluidContainerItem container) {
             ItemStack stack = itemStack.copy();
-            FluidStack fluidStack = container.getFluid(itemStack);
             FluidStack drained = container.drain(stack, Integer.MAX_VALUE, true);
 
-            if (drained == null || fluidStack == null || drained.amount < fluidStack.amount) {
+            if (drained == null || drained.amount < fluidStack.amount) {
                 return null;
             }
             return stack;