Not able to delete text elements.

Hello

I copied a z report from production server to development server by copying the code in se38.

now system is no allowing me to delete a text element for parameter.

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SELECTION-SCREEN BEGIN OF BLOCK b4 with frame title text-012.
PARAMETERS: P_YEAR  TYPE GJAHR OBLIGATORY DEFAULT 2014,       " Year
             P_MONTH TYPE FCMNR AS LISTBOX  VISIBLE LENGTH 20 ,      " Month
             P_COMP  TYPE BUKRS OBLIGATORY DEFAULT 1000.       " Company Code
SELECT-OPTIONS S_PLANT FOR  vbrp-werks." Plant
            """PARAMETERS: P_FKART  AS CHECKBOX .             " Billing Document
SELECTION-SCREEN END OF BLOCK b4.

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here my requirement is to disable PARAMETER : P_FKART and disable corresponding text element in system.

i tried:

1. deleting the text element row for p_fkart but it appears again when i save the text element.

2.commenting the complete selection block and writing new selection block with text-012.system is taking same text element when i double click.

thanks.