chore(ffi): Remove support for opentelemetry.

This patch removes support for OpenTelemetry because it's not used
anymore by anybody. It also adds multiple duplicated dependencies (like
`reqwest`). Anyway. Farewell.

Author: Hywan

Cargo.lock

@@ -24,25 +24,19 @@ vergen = { version = "8.1.3", features = ["build", "git", "gitcl"] }
 anyhow = { workspace = true }
 as_variant = { workspace = true }
 async-compat = "0.2.1"
-base64 = "0.22"
 eyeball-im = { workspace = true }
 extension-trait = "1.0.1"
-futures-core = { workspace = true }
 futures-util = { workspace = true }
 matrix-sdk-ui = { workspace = true, features = ["e2e-encryption", "uniffi", "experimental-room-list-with-unified-invites"] }
 mime = "0.3.16"
 once_cell = { workspace = true }
-opentelemetry = "0.22.0"
-opentelemetry_sdk = { version = "0.22.0", features = ["rt-tokio"] }
-opentelemetry-otlp = { version = "0.15.0", features = ["tokio", "reqwest-client", "http-proto"] }
 ruma = { workspace = true, features = ["html", "unstable-unspecified", "unstable-msc3488", "compat-unset-avatar", "unstable-msc3245-v1-compat"] }
 sanitize-filename-reader-friendly = "2.2.1"
 serde = { workspace = true }
 serde_json = { workspace = true }
 thiserror = { workspace = true }
 tracing = { workspace = true }
 tracing-core = { workspace = true }
-tracing-opentelemetry = "0.23.0"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tracing-appender = { version = "0.2.2" }
 tokio = { version = "1", features = ["rt-multi-thread", "macros"] }