Remove empty AOSP repositories

external/google-api-services-storage
29b36ff Initial empty repository
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external/python/Pillow
d9c0fcc Initial empty repository
external/python/appdirs
0d9b511 Initial empty repository
external/python/cachetools
ee4588a Initial empty repository
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external/python/dill
01988c5 Initial empty repository
external/python/enum
6706fcd Initial empty repository
external/python/enum34
ed56821 Initial empty repository
external/python/future
fa8e703 Initial empty repository
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external/python/gapic-google-cloud-pubsub-v1
44cde1e Initial empty repository
external/python/google-api-python-client
6e0c0af3 Initial empty repository
external/python/google-auth
51bbd38 Initial empty repository
external/python/google-auth-httplib2
c4201f1 Initial empty repository
external/python/google-cloud-core
1b76945 Initial empty repository
external/python/google-cloud-pubsub
0f0dec2 Initial empty repository
external/python/google-gax
70dddff Initial empty repository
external/python/googleapis
67d384e Initial empty repository
external/python/grpc-google-iam-v1
6ce59f6 Initial empty repository
external/python/grpcio
c059a54 Initial empty repository
external/python/httplib2
90f8800 Initial empty repository
external/python/matplotlib
bbaf4f4 Initial empty repository
external/python/numpy
b12e871 Initial empty repository
external/python/oauth2client
ea7213c Initial empty repository
external/python/olefile
1221d9b Initial empty repository
external/python/packaging
28b23ad Initial empty repository
external/python/parse
aebfe77 Initial empty repository
external/python/ply
2b3c386 Initial empty repository
external/python/proto-google-cloud-pubsub-v1
ea95753 Initial empty repository
external/python/protobuf
6e9cbd5 Initial empty repository
external/python/pyasn1
060cf69 Initial empty repository
external/python/pyasn1-modules
52eef53 Initial empty repository
external/python/pyparsing
349ddce Initial empty repository
external/python/requests
f51a289 Initial empty repository
external/python/rsa
dbe61a7 Initial empty repository
external/python/scipy
626da59 Initial empty repository
external/python/setuptools
e493fcf Initial empty repository
external/python/six
f91473d Initial empty repository
external/python/uritemplates
4edb222 Initial empty repository
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prebuilts/maven_repo/google-play-service-client-libraries-3p
427e6e2 Initial empty repository
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test/vti/alert
2270d16 Initial empty repository

Change-Id: Iaedfd29eb77c949ffdccd09248c6fec25a4f4816