i2p: remove bottle :unneeded

[cho-m]

• Have you followed the guidelines for contributing?
• Have you ensured that your commits follow the commit style guide?
• Have you checked that there aren't other open pull requests for the same formula update/change?
• Have you built your formula locally with brew install --build-from-source <formula>, where <formula> is the name of the formula you're submitting?
• Is your test running fine brew test <formula>, where <formula> is the name of the formula you're submitting?
• Does your build pass brew audit --strict <formula> (after doing brew install --build-from-source <formula>)? If this is a new formula, does it pass brew audit --new <formula>?

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Extract from #79998

[Moisan]

No bottle is the same.

> sha256sum *.tar.gz
91ac9fbb2404651738e12dfdb83cdc52579447b179d0866e4a47edba8cb6c8a4  i2p--0.9.50.arm64_big_sur.bottle.tar.gz
99cd48d4a4af5c0aca367cd0155473059dc41aaa92ee55ded8b3e91e3d65a6e9  i2p--0.9.50.big_sur.bottle.tar.gz
1494be1975d2011c1cbdf030c723340bbe91c20a31b44d0ac802791226d8d8bc  i2p--0.9.50.catalina.bottle.tar.gz
ece392199586ca726a9f1de563982be8650b55db82c26b6a2dd66b82cab70f6e  i2p--0.9.50.mojave.bottle.tar.gz

[cho-m]

It looks like the installer will construct JAR files, which diff on modified timestamps and perhaps some other system build details.

java -jar i2pinstall_#{version}.jar -options path.conf -language eng

e.g.

│ ├── i2p/0.9.50/libexec/Uninstaller/uninstaller.jar
│ │┄ Archive contents identical but files differ, possibly due to different compression levels. Falling back to binary comparison.
│ │ ├── zipinfo -v {}
│ │ │ @@ -35586,15 +35586,15 @@
│ │ │    version of encoding software:                   2.0
│ │ │    minimum file system compatibility required:     MS-DOS, OS/2 or NT FAT
│ │ │    minimum software version required to extract:   2.0
│ │ │    compression method:                             deflated
│ │ │    compression sub-type (deflation):               normal
│ │ │    file security status:                           not encrypted
│ │ │    extended local header:                          yes
│ │ │ -  file last modified on (DOS date/time):          2021 Jun 27 05:25:46
│ │ │ +  file last modified on (DOS date/time):          2021 Jun 27 05:25:44

[BrewTestBot]

🤖 A scheduled task has triggered a merge.