Remove extra imxrt defines

output_i2s.cpp

 #define SAI1
 //#define SAI2
 
-//TODO: Copy these to imrtx.h:
-#define CCM_ANALOG_PLL_AUDIO_LOCK	((uint32_t)(1<<31))
-#define I2S_TCR2_BCP			((uint32_t)1<<25)
-#define I2S_RCR2_BCP			((uint32_t)1<<25)
-#define I2S_TCR4_FCONT			((uint32_t)1<<28)	// FIFO Continue on Error
-#define I2S_RCR4_FCONT			((uint32_t)1<<28)	// FIFO Continue on Error
-#define I2S_TCR4_FSP			((uint32_t)1<< 1)
-#define I2S_RCR4_FSP			((uint32_t)1<< 1)
 typedef struct
 {
   uint32_t CSR;
 	CORE_PIN9_CONFIG  = PORT_PCR_MUX(6); // pin  9, PTC3, I2S0_TX_BCLK
 	CORE_PIN11_CONFIG = PORT_PCR_MUX(6); // pin 11, PTC6, I2S0_MCLK
 }
-#endif
+#endif