C++: Remove the BMN filter from some queries, but reduce precision to medium

Remove the `not any(Compilation c).buildModeNone() and` clause from:
    cpp/wrong-type-format-argument
    cpp/comparison-with-wider-type
    cpp/integer-multiplication-cast-to-long
    cpp/implicit-function-declaration
    cpp/suspicious-add-sizeof
but reduce their precision to `medium`.

cpp/ql/src/Security/CWE/CWE-190/ComparisonWithWiderType.ql

@@ -6,7 +6,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 7.8
- * @precision high
+ * @precision medium
  * @tags reliability
  *       security
  *       external/cwe/cwe-190
@@ -51,7 +51,6 @@ int getComparisonSizeAdjustment(Expr e) {
 
 from Loop l, RelationalOperation rel, VariableAccess small, Expr large
 where
-  not any(Compilation c).buildModeNone() and
   small = rel.getLesserOperand() and
   large = rel.getGreaterOperand() and
   rel = l.getCondition().getAChild*() and

cpp/ql/src/Security/CWE/CWE-468/SuspiciousAddWithSizeof.ql

@@ -6,7 +6,7 @@
  * @kind problem
  * @problem.severity warning
  * @security-severity 8.8
- * @precision high
+ * @precision medium
  * @id cpp/suspicious-add-sizeof
  * @tags security
  *       external/cwe/cwe-468
@@ -24,7 +24,6 @@ private predicate isCharSzPtrExpr(Expr e) {
 
 from Expr sizeofExpr, Expr e
 where
-  not any(Compilation c).buildModeNone() and
   // If we see an addWithSizeof then we expect the type of
   // the pointer expression to be `char*` or `void*`. Otherwise it
   // is probably a mistake.