The first one means I am not going to delete Section 3.7 myself; whereas the second sentence means I don’t want Section 3.7 to be deleted by anybody.
第一句句子意思是我不会自己去删掉3.7节，但第二句句子表达的是我不希望任何人删掉3.7节。
If you find it difficult to see the difference in meaning, try replacing the -ing form with a noun phrase:
如果你觉得要看出其中的差异有点难，那你可以试着用一个名词性词组来代替动词-ing形式：
EX. I cannot agree to the deletion of Section 3.7. (Deletion by anyone)
例句：我不同意删掉第3.7节。(任何人去删除，我都不会同意的)
