max feedrate for stealth mode reduced to 100mm/s (because of loudness)

Firmware/variants/1_75mm_MK3-EINSy10a-E3Dv6full.h

@@ -100,7 +100,7 @@
 
 //Silent mode limits
 #define SILENT_MAX_ACCEL_XY      960ul  // max acceleration in silent mode in mm/s^2
-#define SILENT_MAX_FEEDRATE_XY   172  // max feedrate in mm/s
+#define SILENT_MAX_FEEDRATE_XY   100  // max feedrate in mm/s
 
 //Normal mode limits
 #define NORMAL_MAX_ACCEL_XY     2500ul  // max acceleration in normal mode in mm/s^2