Revert "Treat pending requests as active"

This reverts commit 19c908035b.

src/http/Client.zig

@@ -185,14 +185,12 @@ pub fn tick(self: *Client, timeout_ms: usize) !void {
 
 pub fn request(self: *Client, req: Request) !void {
     if (self.handles.getFreeHandle()) |handle| {
-        self.active += 1;
         return self.makeRequest(handle, req);
     }
 
     const node = try self.queue_node_pool.create();
     node.data = req;
     self.queue.append(node);
-    self.active += 1;
 }
 
 // See ScriptManager.blockingGet
@@ -236,18 +234,13 @@ fn makeRequest(self: *Client, handle: *Handle, req: Request) !void {
 
     // we need this for cookies
     const uri = std.Uri.parse(req.url) catch |err| {
-        self.active -= 1;
         self.handles.release(handle);
         log.warn(.http, "invalid url", .{ .err = err, .url = req.url });
         return;
     };
 
     const header_list = blk: {
-        errdefer {
+        errdefer self.handles.release(handle);
-            self.active -= 1;
-            self.handles.release(handle);
-        }
-
         try conn.setMethod(req.method);
         try conn.setURL(req.url);
 
@@ -282,10 +275,7 @@ fn makeRequest(self: *Client, handle: *Handle, req: Request) !void {
     };
 
     {
-        errdefer {
+        errdefer self.handles.release(handle);
-            self.active -= 1;
-            self.handles.release(handle);
-        }
 
         const transfer = try self.transfer_pool.create();
         transfer.* = .{
@@ -309,6 +299,7 @@ fn makeRequest(self: *Client, handle: *Handle, req: Request) !void {
         }
     }
 
+    self.active += 1;
     return self.perform(0);
 }