sqld: turn off wasm functions by default

It also transiently fixes the "malformed db" issue with embedded
replicas. Those replicas didn't create a "libsql_wasm_func_table"
when first connecting, and sqld did, due to having wasm functions
enabled.
But, since our sqld parser still doesn't accept CREATE FUNCTION
yet, there's no harm in disabling the support.

Author: psarna

libsql-server/sqld/Cargo.toml

@@ -95,7 +95,7 @@ tonic-build = "0.10"
 vergen = { version = "8", features = ["build", "git", "gitcl"] }
 
 [features]
-default = ["wasm-udfs"]
+default = []
 unix-excl-vfs = ["sqld-libsql-bindings/unix-excl-vfs"]
 debug-tools = ["console-subscriber", "rusqlite/trace", "tokio/tracing"]
 sim-tests = ["libsql"]