LibRegex: Remove return value for setters

Userland/Libraries/LibRegex/RegexByteCode.cpp

@@ -151,7 +151,9 @@ ALWAYS_INLINE OpCode* ByteCode::get_opcode_by_id(OpCodeId id) const
     if (id > OpCodeId::Last)
         return nullptr;
 
-    return const_cast<OpCode*>(s_opcodes[(u32)id]->set_bytecode(*const_cast<ByteCode*>(this)));
+    auto* opcode = &*s_opcodes[(u32)id];
+    opcode->set_bytecode(*const_cast<ByteCode*>(this));
+    return opcode;
 }
 
 OpCode* ByteCode::get_opcode(MatchState& state) const

Userland/Libraries/LibRegex/RegexByteCode.h

@@ -496,17 +496,9 @@ public:
     ALWAYS_INLINE const char* name() const;
     static const char* name(const OpCodeId);
 
-    ALWAYS_INLINE OpCode* set_state(MatchState& state)
-    {
-        m_state = &state;
-        return this;
-    }
+    ALWAYS_INLINE void set_state(MatchState& state) { m_state = &state; }
 
-    ALWAYS_INLINE OpCode* set_bytecode(ByteCode& bytecode)
-    {
-        m_bytecode = &bytecode;
-        return this;
-    }
+    ALWAYS_INLINE void set_bytecode(ByteCode& bytecode) { m_bytecode = &bytecode; }
 
     ALWAYS_INLINE void reset_state() { m_state.clear(); }