from irs 2019 instructions for for 1065
Domestic Partnerships
.. every domestic
partnership must file Form 1065, unless it
neither receives income nor incurs any
expenditures treated as deductions or
credits for federal income tax purposes.
Entities formed as LLCs that are
classified as partnerships for federal income
tax purposes have the same filing
requirements as domestic partnerships.
so according to the IRS since you had no financial activity there is no need to file,
even though the IRS says, based on what you provided, no return is required. The IRS does't know you are not required to file. So you may get an inquiry. just respond you had no income, no expense and no credits and therefore was not required to file.