posix.cfg: Added support for remove().

cfg/posix.cfg

@@ -2520,10 +2520,21 @@ The function 'mktemp' is considered to be dangerous due to race conditions and s
     <noreturn>false</noreturn>
     <leak-ignore/>
     <arg nr="1">
+      <not-uninit/>
       <not-null/>
     </arg>
     <arg nr="2"/>
   </function>
+  <!-- int remove(const char *pathname); -->
+  <function name="remove">
+    <use-retval/>
+    <noreturn>false</noreturn>
+    <leak-ignore/>
+    <arg nr="1">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+  </function>
   <memory>
     <alloc init="true">strdup</alloc>
     <alloc init="true">strndup</alloc>