core: stdcm: remove duplicate block check

This is now checked in the infra explorer anyway
(and in a more efficient way)

Signed-off-by: Eloi Charpentier <eloi.charpentier.42@gmail.com>

core/src/main/kotlin/fr/sncf/osrd/stdcm/graph/STDCMEdgeBuilder.kt

@@ -46,7 +46,7 @@ internal constructor(
      */
     fun makeAllEdges(): Collection<STDCMEdge> {
         return try {
-            if (getEnvelope() == null || hasDuplicateBlocks()) {
+            if (getEnvelope() == null) {
                 listOf()
             } else {
                 val delays = getDelaysPerOpening()
@@ -217,17 +217,6 @@ internal constructor(
         return if (res == null || graph.delayManager.isRunTimeTooLong(res)) null else res
     }
 
-    /** Returns true if the current block is already present in the path to this edge */
-    private fun hasDuplicateBlocks(): Boolean {
-        var node = prevNode
-        while (true) {
-            val prevEdge = node.previousEdge ?: return false
-            if (!prevEdge.endAtStop && prevEdge.block == infraExplorer.getCurrentBlock())
-                return true
-            node = prevEdge.previousNode
-        }
-    }
-
     companion object {
         fun fromNode(
             graph: STDCMGraph,