[Python] I can't clear DEFAULT nodes in Blender it ALWAYS appears

Here's my function, It basically takes the textures of MINECRAFT blocks and links it to the material output directly.

Whenever I run the code it generates this boilerplate (Texture Coordinate > Mapping > Image Texture > Principled BSDF > Material Output)

I don't want that!, I want (Image Textures > Material Output) directly.

I'm using **blender 4.3 LTS**



Here's my CODE.

def create_block(context, position, texture_path):
# Create cube
bpy.ops.mesh.primitive_cube_add(size=block_size, enter_editmode=False, align='WORLD', location=position)
block = context.active_object
block.name = f"minecraft_block_{os.path.basename(texture_path).split('.')[0]}"

# Create a new material
mat_name = f"minecraft_mat_{os.path.basename(texture_path).split('.')[0]}"
mat = bpy.data.materials.new(name=mat_name)
mat.use_nodes = True

# Clear all default nodes (including Principled BSDF)
nodes = mat.node_tree.nodes
links = mat.node_tree.links
nodes.clear() # This removes ALL nodes, including the default Principled BSDF

# Create ONLY an Image Texture node and a Material Output node
tex = nodes.new(type='ShaderNodeTexImage')
tex.location = (0, 0)

output = nodes.new(type='ShaderNodeOutputMaterial')
output.location = (300, 0)

# Load the texture
try:
tex.image = bpy.data.images.load(texture_path, check_existing=True)
except Exception as e:
print(f"Failed to load texture: {texture_path}, Error: {e}")

# Connect the Image Texture directly to the Material Output
links.new(tex.outputs["Color"], output.inputs["Surface"])

# Assign the material to the block
if block.data.materials:
block.data.materials[0] = mat
else:
block.data.materials.append(mat)

# Fix UV mapping using "Project from View (Bounds)"
bpy.ops.object.mode_set(mode='EDIT')

# Store the current view
original_view = context.area.spaces.active.region_3d.view_perspective

# Switch to orthographic view for proper projection
context.area.spaces.active.region_3d.view_perspective = 'ORTHO'

# Select all faces
bpy.ops.mesh.select_all(action='SELECT')

# Project UVs for each face individually
for view in ['FRONT', 'BACK', 'LEFT', 'RIGHT', 'TOP', 'BOTTOM']:
# Set the view
bpy.ops.view3d.view_axis(type=view)
# Project UVs from this view with bounds
bpy.ops.uv.project_from_view(scale_to_bounds=True)

# Restore the original view
context.area.spaces.active.region_3d.view_perspective = original_view

# Return to object mode
bpy.ops.object.mode_set(mode='OBJECT')

return block

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