lsp: Use LspCommand.check_capabilities consistently (#14733)

This is a follow-up to #14666 in which I noticed that we don't need that
additional check, since each request will check whether it's supported
via the call to `check_capabilities` before sending the request.


Release Notes:

- N/A

crates/project/src/lsp_command.rs

@@ -1354,6 +1354,14 @@ impl LspCommand for GetHover {
     type LspRequest = lsp::request::HoverRequest;
     type ProtoRequest = proto::GetHover;
 
+    fn check_capabilities(&self, capabilities: AdapterServerCapabilities) -> bool {
+        match capabilities.server_capabilities.hover_provider {
+            Some(lsp::HoverProviderCapability::Simple(enabled)) => enabled,
+            Some(lsp::HoverProviderCapability::Options(_)) => true,
+            None => false,
+        }
+    }
+
     fn to_lsp(
         &self,
         path: &Path,
@@ -2062,17 +2070,6 @@ impl GetCodeActions {
             })
             .unwrap_or(false)
     }
-
-    pub fn supports_code_actions(capabilities: &ServerCapabilities) -> bool {
-        capabilities
-            .code_action_provider
-            .as_ref()
-            .map(|options| match options {
-                lsp::CodeActionProviderCapability::Simple(is_supported) => *is_supported,
-                lsp::CodeActionProviderCapability::Options(_) => true,
-            })
-            .unwrap_or(false)
-    }
 }
 
 #[async_trait(?Send)]