[LLDB] Remove duplicate loop in FindMatchingModuleSpec.

[zequanwu]

Summary

The removed loop is the same as the one above it. If previous one success, it
returns. Otherwise, searching will fail again.

[zequanwu]

NVM, didn't see exact_arch_match is false in the second search.

lldb/include/lldb/Core/ModuleSpec.h

bool FindMatchingModuleSpec(const ModuleSpec &module_spec,
     bool exact_arch_match = true;
     for (auto spec : m_specs) {
       if (spec.Matches(module_spec, exact_arch_match)) {
         match_module_spec = spec;
         return true;
       }
     }
 
-    // If there was an architecture, retry with a compatible arch
-    if (module_spec.GetArchitecturePtr()) {
-      exact_arch_match = false;
-      for (auto spec : m_specs) {
-        if (spec.Matches(module_spec, exact_arch_match)) {
-          match_module_spec = spec;
-          return true;
-        }
-      }
-    }
     match_module_spec.Clear();
     return false;
   }
 
   void FindMatchingModuleSpecs(const ModuleSpec &module_spec,
                                ModuleSpecList &matching_list) const {
     std::lock_guard<std::recursive_mutex> guard(m_mutex);
     bool exact_arch_match = true;