Import upstream v0.16.22, stripped

Upstream commit: 474dd0229cb20cf513036619781ed97bd8073c3f
Enterprise-only files removed or emptied: 63
Enterprise-only snippets removed: 117 in 50 files
Dangling module declarations removed: 5
Cargo edits turning enterprise off: 14
Verification: clean
Enterprise feature gates left for rebuilt features: 19 in 18 files

Produced by tools/fork/strip.py. The full report is in docs/fork/strip-reports/ on main.

tests/resources/jmap/email_snippet/text_plain.eml

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+From: Abidjan Prince <[email protected]>
+To: Bill Foobar <[email protected]>
+Content-Language: en
+Subject: Help a friend from Abidjan Côte d'Ivoire
+
+When my mother died when she was given birth to me, my father took me so  
+special because I am motherless. Before the death of my late father on 22nd June 
+2013 in a private hospital here in Abidjan Côte d'Ivoire. He secretly called me on his 
+bedside and told me that he has a sum of $7.5M (Seven Million five Hundred 
+Thousand Dollars) left in a suspense account in a local bank here in Abidjan Côte 
+d'Ivoire, that he used my name as his only daughter for the next of kin in deposit of 
+the fund. 
+I am 24year old. Dear I am honorably seeking your assistance in the following ways. 
+1) To provide any bank account where this money would be transferred into. 
+2) To serve as the guardian of this fund. 
+3) To make arrangement for me to come over to your country to further my 
+education and to secure a residential permit for me in your country. 
+Moreover, I am willing to offer you 30 percent of the total sum as compensation for 
+your effort input after the successful transfer of this fund to your nominated 
+account overseas.