Remove the pack-in plugins (#4719)

Cargo.toml

@@ -106,28 +106,6 @@ inherits = "release"
 strip = false
 debug = true
 
-# Build plugins
-[[bin]]
-name = "nu_plugin_core_inc"
-path = "src/plugins/nu_plugin_core_inc.rs"
-required-features = ["inc"]
-
-[[bin]]
-name = "nu_plugin_core_example"
-path = "src/plugins/nu_plugin_core_example.rs"
-required-features = ["example"]
-
-# Extra plugins
-[[bin]]
-name = "nu_plugin_extra_gstat"
-path = "src/plugins/nu_plugin_extra_gstat.rs"
-required-features = ["gstat"]
-
-[[bin]]
-name = "nu_plugin_extra_query"
-path = "src/plugins/nu_plugin_extra_query.rs"
-required-features = ["query"]
-
 # Main nu binary
 [[bin]]
 name = "nu"

src/plugins/nu_plugin_core_example.rs

@@ -1,6 +0,0 @@
-use nu_plugin::{serve_plugin, CapnpSerializer};
-use nu_plugin_example::Example;
-
-fn main() {
-    serve_plugin(&mut Example {}, CapnpSerializer {})
-}

src/plugins/nu_plugin_core_inc.rs

@@ -1,6 +0,0 @@
-use nu_plugin::{serve_plugin, CapnpSerializer};
-use nu_plugin_inc::Inc;
-
-fn main() {
-    serve_plugin(&mut Inc::new(), CapnpSerializer {})
-}

src/plugins/nu_plugin_extra_gstat.rs

@@ -1,6 +0,0 @@
-use nu_plugin::{serve_plugin, CapnpSerializer};
-use nu_plugin_gstat::GStat;
-
-fn main() {
-    serve_plugin(&mut GStat::new(), CapnpSerializer {})
-}

src/plugins/nu_plugin_extra_query.rs

@@ -1,6 +0,0 @@
-use nu_plugin::{serve_plugin, CapnpSerializer};
-use nu_plugin_query::Query;
-
-fn main() {
-    serve_plugin(&mut Query::new(), CapnpSerializer {})
-}