Removing SEH default case for function calls as the logic to handle SEH is not yet part of the IR generation to make this logic work.

cpp/ql/lib/semmle/code/cpp/models/implementations/StructuredExceptionHandling.qll

@@ -1,20 +1,5 @@
 import semmle.code.cpp.models.interfaces.Throwing
 
-/**
- * The default behavior for Structured Exception Handling (SEH) is
- * any function may (conditionally) raise an exception.
- * NOTE: this can be overridden by for any specific function to make in
- * unconditional or non-throwing. IR generation will enforce
- * the most strict interpretation.
- */
-class DefaultSehExceptionBehavior extends ThrowingFunction {
-  DefaultSehExceptionBehavior() { any() }
-
-  override predicate raisesException(boolean unconditional) { unconditional = false }
-
-  override TSehException getExceptionType() { any() }
-}
-
 class WindowsDriverExceptionAnnotation extends ThrowingFunction {
   WindowsDriverExceptionAnnotation() {
     this.hasGlobalName(["RaiseException", "ExRaiseAccessViolation", "ExRaiseDatatypeMisalignment"])