loader: drop write-only compiled-form cache and its unused helpers

compiled?/get-compiled-forms/clear-compiled-cache were never called, and
load-ns only ever wrote to :compiled-cache with no reader. All dead once the
self-host path landed. Removed the helpers, the cache writes, and the
:compiled-cache env field.

src/jolt/loader.janet

@@ -45,67 +45,34 @@
     (eval-form ctx @{} form)))
 
 (defn load-ns
-  "Load a Clojure namespace from a .clj file.
-  When ctx has :compile? enabled, forms are compiled to Janet source,
-  evaluated via Janet's evaluator, and cached.
-  
+  "Load a Clojure namespace from a .clj file. Per-form routing (compile-or-
+  interpret, stateful forms interpret) is shared with eval-one via eval-toplevel.
+
   (load-ns ctx filepath) → namespace symbol string"
   [ctx filepath]
-  (let [env (ctx :env)
-        compile? (get env :compile?)
-        cache (get env :compiled-cache)]
-    
-    (def source (slurp filepath))
-    (var ns-name nil)
-    (var remaining source)
-    (var forms @[])
-    
-    # Parse all forms
-    (while (> (length (string/trim remaining)) 0)
-      (def [form rest] (parse-next remaining))
-      (set remaining rest)
-      (when (not (nil? form))
-        (array/push forms form)
-        # Extract ns name from the first ns form
-        (when (and (nil? ns-name)
-                   (array? form)
-                   (> (length form) 0)
-                   (and (struct? (first form))
-                        (= :symbol ((first form) :jolt/type))
-                        (= "ns" ((first form) :name))))
-          (let [name-form (in form 1)]
-            (set ns-name (if (struct? name-form) (name-form :name) (string name-form)))))))
-    
-    (when (nil? ns-name)
-      (error (string "No ns form found in " filepath)))
-    
-    # Per-form routing (compile-or-interpret, stateful forms interpret) is shared
-    # with eval-one via eval-toplevel. When compiling, also record the forms so a
-    # namespace can be inspected / re-emitted.
-    (when compile?
-      (var cached (get cache ns-name))
-      (when (nil? cached)
-        (set cached @[])
-        (put cache ns-name cached))
-      (each form forms (array/push cached form)))
-    (each form forms (eval-toplevel ctx form))
-    ns-name))
+  (def source (slurp filepath))
+  (var ns-name nil)
+  (var remaining source)
+  (var forms @[])
 
-(defn compiled?
-  "Check if a namespace has been compiled and cached."
-  [ctx ns-name]
-  (let [cache (get (ctx :env) :compiled-cache)]
-    (not (nil? (get cache ns-name)))))
+  # Parse all forms
+  (while (> (length (string/trim remaining)) 0)
+    (def [form rest] (parse-next remaining))
+    (set remaining rest)
+    (when (not (nil? form))
+      (array/push forms form)
+      # Extract ns name from the first ns form
+      (when (and (nil? ns-name)
+                 (array? form)
+                 (> (length form) 0)
+                 (and (struct? (first form))
+                      (= :symbol ((first form) :jolt/type))
+                      (= "ns" ((first form) :name))))
+        (let [name-form (in form 1)]
+          (set ns-name (if (struct? name-form) (name-form :name) (string name-form)))))))
 
-(defn get-compiled-forms
-  "Get the compiled Janet source forms for a namespace."
-  [ctx ns-name]
-  (get (ctx :env) :compiled-cache ns-name))
+  (when (nil? ns-name)
+    (error (string "No ns form found in " filepath)))
 
-(defn clear-compiled-cache
-  "Clear the compiled form cache for a namespace or all namespaces."
-  [ctx &opt ns-name]
-  (let [cache (get (ctx :env) :compiled-cache)]
-    (if ns-name
-      (put cache ns-name nil)
-      (loop [[k] :pairs cache] (put cache k nil)))))
+  (each form forms (eval-toplevel ctx form))
+  ns-name)

src/jolt/types.janet

@@ -373,7 +373,6 @@
               # to a .clj/.cljc file. jolt-core holds the portable Clojure layer
               # (analyzer/IR/core); deps.edn resolution appends dep src dirs.
               :source-paths @["jolt-core" "src/jolt"]
-              :compiled-cache @{}
               :type-registry @{}
               :data-readers (let [dr @{}]
                               (put dr (keyword "#inst") (fn [s] s))