spam = [(1, 2), (1, 3), (2, 5), (5, 4), (1, 4)]

spam = [(2, 5), (5, 4)]

for item in spam:
     if item[0] == 1:
         spam.remove(item)

eggs = []
for item in spam:
    if item[0] != 1:
        eggs.append(item)