fix(ci): cleanup

.github/workflows/ci.yaml

@@ -2,19 +2,9 @@ name: ci
 
 on:
   push:
-    paths:
-      - 'include/**'
-      - 'src/**'
-      - 'tests/**'
-      - 'CMakeLists.txt'
-      - '.github/workflows/**'
+    branches: [main]
   pull_request:
-    paths:
-      - 'include/**'
-      - 'src/**'
-      - 'tests/**'
-      - 'CMakeLists.txt'
-      - '.github/workflows/**'
+    branches: [main]
 
 jobs:
   format:

include/bmath/sieve.hh

@@ -8,8 +8,6 @@
 
 namespace bmath {
 
-  auto _ = 1+1;
-
 template <typename Derived, size_t Limit>
   requires(Limit > 0)
 class Sieve {