From e0bb29e54fb390151e51e9a01996a9324457b64b Mon Sep 17 00:00:00 2001
From: Ann Almgren <asalmgren@lbl.gov>
Date: Tue, 16 Jun 2026 16:14:11 -0700
Subject: [PATCH] Revert "Protect against multiple specification of same inputs
 option (#3309)"

This reverts commit 0d276fe7c779fa86b61bf3a5f836b8a36ce044bf.
---
 Source/ERF.cpp | 46 ----------------------------------------------
 1 file changed, 46 deletions(-)

diff --git a/Source/ERF.cpp b/Source/ERF.cpp
index 037c80f73..29acbf42f 100644
--- a/Source/ERF.cpp
+++ b/Source/ERF.cpp
@@ -2901,50 +2901,6 @@ ERF::ReadParameters ()
     ParameterSanityChecks();
 }
 
-void CheckForDuplicateInputs ()
-{
-    amrex::ParmParse pp;
-    const auto& tbl = pp.table();
-
-    bool found = false;
-
-    for (const auto& [full_name, entry] : tbl)
-    {
-        std::string prefix;
-        std::string name;
-
-        auto pos = full_name.find('.');
-
-        if (pos != std::string::npos)
-        {
-            prefix = full_name.substr(0, pos);
-            name   = full_name.substr(pos + 1);
-        }
-        else
-        {
-            prefix = "global";
-            name   = full_name;
-        }
-
-        if (entry.m_vals.size() > 1)
-        {
-            found = true;
-
-            amrex::Print() << "Duplicate input: ";
-
-            if (prefix == "global")
-                amrex::Print() << name;
-            else
-                amrex::Print() << prefix << "." << name;
-
-            amrex::Print() << " (" << entry.m_vals.size() << " occurrences)\n";
-        }
-    }
-
-    if (found)
-        amrex::Abort("Duplicate inputs detected");
-}
-
 // Read in some parameters from inputs file
 void
 ERF::ParameterSanityChecks ()
@@ -3010,8 +2966,6 @@ ERF::ParameterSanityChecks ()
     if (solverChoice.coupling_type == CouplingType::TwoWay && cf_width > 0) {
         Abort("For two-way coupling you must set cf_width = 0");
     }
-
-    CheckForDuplicateInputs();
 }
 
 // Create horizontal average quantities for 5 variables: