fix(firestore): remove nanopb version constraints from podspec (#12632)

Author: russellwheatley

packages/cloud_firestore/cloud_firestore/ios/cloud_firestore.podspec

@@ -34,9 +34,6 @@ Pod::Spec.new do |s|
 
   s.dependency 'firebase_core'
   s.dependency 'Firebase/Firestore', firebase_sdk_version
-  # required until firestore-ios-sdk-frameworks is updated, otherwise users of that distribution will have compile failures
-  # see https://github.com/invertase/firestore-ios-sdk-frameworks/issues/59
-  s.dependency 'nanopb', '>= 2.30908.0', '< 2.30910.0'
 
   s.static_framework = true
   s.pod_target_xcconfig = {

packages/cloud_firestore/cloud_firestore/macos/cloud_firestore.podspec

@@ -56,9 +56,6 @@ Pod::Spec.new do |s|
   s.dependency 'firebase_core'
   s.dependency 'Firebase/CoreOnly', "~> #{firebase_sdk_version}"
   s.dependency 'Firebase/Firestore', "~> #{firebase_sdk_version}"
-  # required until firestore-ios-sdk-frameworks is updated, otherwise users of that distribution will have compile failures
-  # see https://github.com/invertase/firestore-ios-sdk-frameworks/issues/59
-  s.dependency 'nanopb', '>= 2.30908.0', '< 2.30910.0'
 
   s.static_framework = true
   s.pod_target_xcconfig = {