YAGNI active_resolve_capabilities

This leaks a lot of LSP details into ide layer, which we want to avoid:

c9cec381bc/docs/dev (lsp-independence)

Additionally, all what this infra does is providing a toggle for
auto-import completion, but we already have one!

crates/completion/src/completions/unqualified_path.rs

@@ -46,7 +46,7 @@ pub(crate) fn complete_unqualified_path(acc: &mut Completions, ctx: &CompletionC
         acc.add_resolution(ctx, name.to_string(), &res)
     });
 
-    if ctx.config.enable_autoimport_completions && ctx.config.resolve_additional_edits_lazily() {
+    if ctx.config.enable_autoimport_completions {
         fuzzy_completion(acc, ctx);
     }
 }
@@ -206,11 +206,7 @@ mod tests {
     }
 
     fn fuzzy_completion_config() -> CompletionConfig {
-        let mut completion_config = CompletionConfig::default();
-        completion_config
-            .active_resolve_capabilities
-            .insert(crate::CompletionResolveCapability::AdditionalTextEdits);
-        completion_config
+        CompletionConfig::default()
     }
 
     #[test]

crates/completion/src/config.rs

@@ -5,7 +5,6 @@
 //! completions if we are allowed to.
 
 use ide_db::helpers::insert_use::MergeBehavior;
-use rustc_hash::FxHashSet;
 
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct CompletionConfig {
@@ -15,32 +14,12 @@ pub struct CompletionConfig {
     pub add_call_argument_snippets: bool,
     pub snippet_cap: Option<SnippetCap>,
     pub merge: Option<MergeBehavior>,
-    /// A set of capabilities, enabled on the client and supported on the server.
-    pub active_resolve_capabilities: FxHashSet<CompletionResolveCapability>,
-}
-
-/// A resolve capability, supported on the server.
-/// If the client registers any completion resolve capabilities,
-/// the server is able to render completion items' corresponding fields later,
-/// not during an initial completion item request.
-/// See https://github.com/rust-analyzer/rust-analyzer/issues/6366 for more details.
-#[derive(Debug, Copy, Clone, Hash, Eq, PartialEq)]
-pub enum CompletionResolveCapability {
-    Documentation,
-    Detail,
-    AdditionalTextEdits,
 }
 
 impl CompletionConfig {
     pub fn allow_snippets(&mut self, yes: bool) {
         self.snippet_cap = if yes { Some(SnippetCap { _private: () }) } else { None }
     }
-
-    /// Whether the completions' additional edits are calculated when sending an initional completions list
-    /// or later, in a separate resolve request.
-    pub fn resolve_additional_edits_lazily(&self) -> bool {
-        self.active_resolve_capabilities.contains(&CompletionResolveCapability::AdditionalTextEdits)
-    }
 }
 
 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
@@ -57,7 +36,6 @@ impl Default for CompletionConfig {
             add_call_argument_snippets: true,
             snippet_cap: Some(SnippetCap { _private: () }),
             merge: Some(MergeBehavior::Full),
-            active_resolve_capabilities: FxHashSet::default(),
         }
     }
 }

crates/completion/src/lib.rs

@@ -20,7 +20,7 @@ use text_edit::TextEdit;
 use crate::{completions::Completions, context::CompletionContext, item::CompletionKind};
 
 pub use crate::{
-    config::{CompletionConfig, CompletionResolveCapability},
+    config::CompletionConfig,
     item::{CompletionItem, CompletionItemKind, CompletionScore, ImportEdit, InsertTextFormat},
 };