Python как удалить 4 элемент каждого ряда в csv

from tkinter import *
import csv
from csv import *
master = Tk()
master.geometry("500x500") #Width x Height
from functools import partial
global g
g = int('0')
from datetime import date

x = date.today()

class tg:
    def geld(v,tt):
        global g
        g = g + v
        print(tt)
        linew =[]
        linew = list((x,tt,v))

        f = open('D:\python/wert.csv', 'a+', newline='')
        writer = csv.writer(f)
        writer.writerow(linew)

    def None_n():
        f = open('D:\python/wert.csv', 'r')
        reader = csv.reader(f)
        linew = []

        for row in reader:
            linew.append(row)
            i5 = 0

            for row in reader:

        print("Taschengeld Ausgabe")
        for item in linew:
            print(item)

    b = Button(master, text="MCk12", height = 2, width = 7, command=partial(geld,200,'Mck12'))
    b.grid(row=2, column=3, columnspan=2)
    e = Button(master, text="MCk11", command=partial(geld,150,'Mck11'), height = 2, width = 7)
    e.grid(row=3, column=3, columnspan=2)
    o = Button(master, text="MCt12", command=partial(geld,100,'Mct12'), height = 2, width = 7)
    o.grid(row=4, column=3, columnspan=2)
    r = Button(master, text="MCt11", command=partial(geld,75,'Mct11'), height = 2, width = 7)
    r.grid(row=5, column=3, columnspan=2)

    n = Button(master, text="Otherk12", command=partial(geld,50,'Otherk12'), height = 2, width = 7)
    n.grid(row=6, column=3, columnspan=2)
    t = Button(master, text="Otherk11", command=partial(geld,30,'Otherk11'), height = 2, width = 7)
    t.grid(row=7, column=3, columnspan=2)
    x = Button(master, text="Othert12", command=partial(geld,30,'Othert12'), height = 2, width = 7)
    x.grid(row=8, column=3, columnspan=2)
    y = Button(master, text="Othert11", command=partial(geld,30,'Othert11'), height = 2, width = 7)
    y.grid(row=9, column=3, columnspan=2)

    q = Button(master, text="None", command=None_n, height = 2, width = 7)
    q.grid(row=10, column=3, columnspan=3)          

    mainloop()