Revert "Fixing compiling issue on RPI1"

This reverts commit 03a07747f0.

src/performanceconfig.cpp

@@ -520,8 +520,7 @@ void CPerformanceConfig::SetReverbLevel (unsigned nValue)
 	m_nReverbLevel = nValue;
 }
 
-#ifdef ARM_ALLOW_MULTI_CORE
-/* Unison START */
+// Unison
 bool CPerformanceConfig::GetUnisonEnable (void) const
 {
 	return m_bUnisonEnable;
@@ -551,8 +550,6 @@ void CPerformanceConfig::SetUnisonDetuneSpread (unsigned nValue)
 {
 	m_nUnisonDetuneSpread = nValue;
 }
-/* Unison END */
-#endif
 
 // Pitch bender and portamento:
 void CPerformanceConfig::SetPitchBendRange (unsigned nValue, unsigned nTG)

src/performanceconfig.h

@@ -117,16 +117,13 @@ public:
 	void SetReverbDiffusion (unsigned nValue);
 	void SetReverbLevel (unsigned nValue);
 
-	#ifdef ARM_ALLOW_MULTI_CORE
-	/* Unison START */
+	// Unison
 	bool GetUnisonEnable (void) const;
 	unsigned GetUnisonPanSpread (void) const;
 	unsigned GetUnisonDetuneSpread (void) const;
 	void SetUnisonEnable (bool bValue);
 	void SetUnisonPanSpread (unsigned nValue);
 	void SetUnisonDetuneSpread (unsigned nValue);
-	/* Unison END */
-	#endif
 
 	bool VoiceDataFilled(unsigned nTG);
 	bool ListPerformances();