Remove runtime NEON detection

webrtc/common_audio/signal_processing/include/signal_processing_library.h

Index: webrtc/common_audio/signal_processing/include/signal_processing_library.h
diff --git a/webrtc/common_audio/signal_processing/include/signal_processing_library.h b/webrtc/common_audio/signal_processing/include/signal_processing_library.h
index 2e96883e6de96a1620d85a4f3118d4004b7bfc4f..19379bf084f7143f7c2bb47b44c7965433f1f87b 100644
--- a/webrtc/common_audio/signal_processing/include/signal_processing_library.h
+++ b/webrtc/common_audio/signal_processing/include/signal_processing_library.h
@@ -106,10 +106,8 @@ extern "C" {
 
 // Initialize SPL. Currently it contains only function pointer initialization.
 // If the underlying platform is known to be ARM-Neon (WEBRTC_HAS_NEON defined),
-// the pointers will be assigned to code optimized for Neon; otherwise
-// if run-time Neon detection (WEBRTC_DETECT_NEON) is enabled, the pointers
-// will be assigned to either Neon code or generic C code; otherwise, generic C
-// code will be assigned.
+// the pointers will be assigned to code optimized for Neon; otherwise, generic
+// C code will be assigned.
 // Note that this function MUST be called in any application that uses SPL
 // functions.
 void WebRtcSpl_Init();
@@ -153,7 +151,7 @@ void WebRtcSpl_ZerosArrayW32(int32_t* vector,
 typedef int16_t (*MaxAbsValueW16)(const int16_t* vector, size_t length);
 extern MaxAbsValueW16 WebRtcSpl_MaxAbsValueW16;
 int16_t WebRtcSpl_MaxAbsValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MaxAbsValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
@@ -170,7 +168,7 @@ int16_t WebRtcSpl_MaxAbsValueW16_mips(const int16_t* vector, size_t length);
 typedef int32_t (*MaxAbsValueW32)(const int32_t* vector, size_t length);
 extern MaxAbsValueW32 WebRtcSpl_MaxAbsValueW32;
 int32_t WebRtcSpl_MaxAbsValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MaxAbsValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS_DSP_R1_LE)
@@ -187,7 +185,7 @@ int32_t WebRtcSpl_MaxAbsValueW32_mips(const int32_t* vector, size_t length);
 typedef int16_t (*MaxValueW16)(const int16_t* vector, size_t length);
 extern MaxValueW16 WebRtcSpl_MaxValueW16;
 int16_t WebRtcSpl_MaxValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MaxValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
@@ -204,7 +202,7 @@ int16_t WebRtcSpl_MaxValueW16_mips(const int16_t* vector, size_t length);
 typedef int32_t (*MaxValueW32)(const int32_t* vector, size_t length);
 extern MaxValueW32 WebRtcSpl_MaxValueW32;
 int32_t WebRtcSpl_MaxValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MaxValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
@@ -221,7 +219,7 @@ int32_t WebRtcSpl_MaxValueW32_mips(const int32_t* vector, size_t length);
 typedef int16_t (*MinValueW16)(const int16_t* vector, size_t length);
 extern MinValueW16 WebRtcSpl_MinValueW16;
 int16_t WebRtcSpl_MinValueW16C(const int16_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int16_t WebRtcSpl_MinValueW16Neon(const int16_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
@@ -238,7 +236,7 @@ int16_t WebRtcSpl_MinValueW16_mips(const int16_t* vector, size_t length);
 typedef int32_t (*MinValueW32)(const int32_t* vector, size_t length);
 extern MinValueW32 WebRtcSpl_MinValueW32;
 int32_t WebRtcSpl_MinValueW32C(const int32_t* vector, size_t length);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int32_t WebRtcSpl_MinValueW32Neon(const int32_t* vector, size_t length);
 #endif
 #if defined(MIPS32_LE)
@@ -531,7 +529,7 @@ void WebRtcSpl_CrossCorrelationC(int32_t* cross_correlation,
                                  size_t dim_cross_correlation,
                                  int right_shifts,
                                  int step_seq2);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 void WebRtcSpl_CrossCorrelationNeon(int32_t* cross_correlation,
                                     const int16_t* seq1,
                                     const int16_t* seq2,
@@ -698,7 +696,7 @@ int WebRtcSpl_DownsampleFastC(const int16_t* data_in,
                               size_t coefficients_length,
                               int factor,
                               size_t delay);
-#if (defined WEBRTC_DETECT_NEON) || (defined WEBRTC_HAS_NEON)
+#if defined(WEBRTC_HAS_NEON)
 int WebRtcSpl_DownsampleFastNeon(const int16_t* data_in,
                                  size_t data_in_length,
                                  int16_t* data_out,