[tlc5971] Remove dead bit-banging delay code (#16086)

esphome/components/tlc5971/tlc5971.cpp

@@ -68,13 +68,8 @@ void TLC5971::transfer_(uint8_t send) {
   uint8_t startbit = 0x80;
 
   bool towrite, lastmosi = !(send & startbit);
-  uint8_t bitdelay_us = (1000000 / 1000000) / 2;
 
   for (uint8_t b = startbit; b != 0; b = b >> 1) {
-    if (bitdelay_us) {
-      delayMicroseconds(bitdelay_us);
-    }
-
     towrite = send & b;
     if ((lastmosi != towrite)) {
       this->data_pin_->digital_write(towrite);
@@ -82,11 +77,6 @@ void TLC5971::transfer_(uint8_t send) {
     }
 
     this->clock_pin_->digital_write(true);
-
-    if (bitdelay_us) {
-      delayMicroseconds(bitdelay_us);
-    }
-
     this->clock_pin_->digital_write(false);
   }
 }