vxp: bring back fallback to trunc(strtod()) for VEX_INT

It seems I wrongly assumed strtoll(".", ...) would return 0, so
bring back the fallack to float parsing similar to what we had
before 05e10ee.

Should fix regression on FreeBSD from 0dfa3b8

Also clean up now unneeded include (thank you, Flexelint).

Fixes #4088

I promise, if this is still wrong, I will install FreeBSD ;)

lib/libvarnishapi/vsl_query.c

@@ -41,7 +41,6 @@
 #include "miniobj.h"
 
 #include "vbm.h"
-#include "vnum.h"
 #include "vqueue.h"
 #include "vre.h"
 #include "vsb.h"
@@ -211,18 +210,19 @@ vslq_test_rec(const struct vex *vex, const struct VSLC_ptr *rec)
 		case VEX_INT:
 			lhs_int = strtoll(b, &q, 0);
 			AN(q);
-			if (q != e && *q != '.')
-				return (0);
+			if (q != e && (*q == '.' || *q == 'e')) {
+				lhs_float = strtod(b, &q);
+				lhs_int = trunc(lhs_float);
+				lhs_float = 0.;
+			}
 			break;
 		case VEX_FLOAT:
 			lhs_float = strtod(b, &q);
-			if (q != e)
-				return (0);
 			break;
 		default:
 			WRONG("Wrong RHS type");
 		}
-		if (errno != 0)
+		if (q != e || errno != 0)
 			return (0);
 		break;
 	default: