Revert "vendor reqwest for now, to support read/write timeouts"

This reverts commit cf247ba.

The separate read and write timeouts were causing syncs to fail - a
long full upload would time out due to no read activity for example.
Reverting until a better fix can be put in place.

rslib/Cargo.toml

@@ -61,15 +61,11 @@ features = ["trace", "functions", "collation"]
 version = "0.23.1"
 features = ["trace", "functions", "collation", "bundled"]
 
-[target.'cfg(linux)'.dependencies.reqwest]
-git = "https://github.com/ankitects/reqwest.git"
-branch = "io-timeout"
-features = ["json", "socks", "stream", "native-tls-vendored"]
+[target.'cfg(linux)'.dependencies]
+reqwest = { version = "0.10.6", features = ["json", "socks", "stream", "native-tls-vendored"] }
 
-[target.'cfg(not(linux))'.dependencies.reqwest]
-git = "https://github.com/ankitects/reqwest.git"
-branch = "io-timeout"
-features = ["json", "socks", "stream"]
+[target.'cfg(not(linux))'.dependencies]
+reqwest = { version = "0.10.6", features = ["json", "socks", "stream" ] }
 
 [build-dependencies]
 prost-build = "0.6.1"