Remove mod function usage from tests

#KT-26654

compiler/testData/diagnostics/tests/operatorRem/noOperatorRemFeature.fir.kt

@@ -23,14 +23,10 @@ fun local() {
     operator fun String.remAssign(x: Int) {}
 }
 
-fun noOverflow() {
-    (-1).mod(5)
-}
-
 fun builtIns(b: Byte, s: Short) {
     var a = 1 % 2
-    a %= 3
-    1.mod(2)
+    var d = 5
+    d %= 3
     b % s
     1.0 % 2.0
 }

compiler/testData/diagnostics/tests/operatorRem/noOperatorRemFeature.kt

@@ -23,14 +23,10 @@ fun local() {
     <!UNSUPPORTED_FEATURE!>operator<!> fun String.remAssign(x: Int) {}
 }
 
-fun noOverflow() {
-    (-1).mod(5)
-}
-
 fun builtIns(b: Byte, s: Short) {
-    var a = 1 % 2
-    a %= 3
-    1.mod(2)
-    b % s
-    1.0 % 2.0
+    var a = 1 <!UNRESOLVED_REFERENCE!>%<!> 2
+    var d = 5
+    d <!UNRESOLVED_REFERENCE!>%=<!> 3
+    b <!UNRESOLVED_REFERENCE!>%<!> s
+    1.0 <!UNRESOLVED_REFERENCE!>%<!> 2.0
 }

compiler/testData/diagnostics/tests/operatorRem/noOperatorRemFeature.txt

@@ -2,7 +2,6 @@ package
 
 public fun builtIns(/*0*/ b: kotlin.Byte, /*1*/ s: kotlin.Short): kotlin.Unit
 public fun local(): kotlin.Unit
-public fun noOverflow(): kotlin.Unit
 public operator fun Baz.rem(/*0*/ x: kotlin.Int): kotlin.Unit
 
 public final class Bar {