Revert "[Core] Add Pixel Flow RGB matrix effect (#15829)" (#16209)

This reverts commit e8fa329073d8752cad9b11b90287fd20f130ac6f.

docs/feature_rgb_matrix.md

@@ -455,7 +455,6 @@ enum rgb_matrix_effects {
     RGB_MATRIX_HUE_PENDULUM,        // Hue shifts up a slight ammount in a wave to the right, then back to the left
     RGB_MATRIX_HUE_WAVE,            // Hue shifts up a slight ammount and then back down in a wave to the right
     RGB_MATRIX_PIXEL_FRACTAL,       // Single hue fractal filled keys pulsing horizontally out to edges
-    RGB_MATRIX_PIXEL_FLOW,          // Pulsing RGB flow along LED wiring with random hues
     RGB_MATRIX_PIXEL_RAIN,          // Randomly light keys with random hues
 #if define(RGB_MATRIX_FRAMEBUFFER_EFFECTS)
     RGB_MATRIX_TYPING_HEATMAP,      // How hot is your WPM!
@@ -511,7 +510,6 @@ You can enable a single effect by defining `ENABLE_[EFFECT_NAME]` in your `confi
 |`#define ENABLE_RGB_MATRIX_HUE_PENDULUM`              |Enables `RGB_MATRIX_HUE_PENDULUM`             |
 |`#define ENABLE_RGB_MATRIX_HUE_WAVE`                  |Enables `RGB_MATRIX_HUE_WAVE `                |
 |`#define ENABLE_RGB_MATRIX_PIXEL_FRACTAL`             |Enables `RGB_MATRIX_PIXEL_FRACTAL`            |
-|`#define ENABLE_RGB_MATRIX_PIXEL_FLOW`                |Enables `RGB_MATRIX_PIXEL_FLOW`               |
 |`#define ENABLE_RGB_MATRIX_PIXEL_RAIN`                |Enables `RGB_MATRIX_PIXEL_RAIN`               |
 
 ?> These modes don't require any additional defines.

docs/squeezing_avr.md

@@ -147,7 +147,6 @@ For RGB Matrix, these need to be explicitly enabled as well. To disable any that
 #undef ENABLE_RGB_MATRIX_HUE_PENDULUM
 #undef ENABLE_RGB_MATRIX_HUE_WAVE
 #undef ENABLE_RGB_MATRIX_PIXEL_FRACTAL
-#undef ENABLE_RGB_MATRIX_PIXEL_FLOW
 #undef ENABLE_RGB_MATRIX_PIXEL_RAIN
 
 #undef ENABLE_RGB_MATRIX_TYPING_HEATMAP

quantum/rgb_matrix/animations/pixel_flow_anim.h

@@ -1,51 +0,0 @@
-// Copyright 2022 @filterpaper
-// SPDX-License-Identifier: GPL-2.0+
-
-#ifdef ENABLE_RGB_MATRIX_PIXEL_FLOW
-RGB_MATRIX_EFFECT(PIXEL_FLOW)
-#    ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
-
-static bool PIXEL_FLOW(effect_params_t* params) {
-    // LED state array
-    static RGB led[DRIVER_LED_TOTAL];
-
-    static uint32_t wait_timer = 0;
-    if (wait_timer > g_rgb_timer) {
-        return false;
-    }
-
-    inline uint32_t interval(void) {
-        return 3000 / scale16by8(qadd8(rgb_matrix_config.speed, 16), 16);
-    }
-
-    if (params->init) {
-        // Clear LEDs and fill the state array
-        rgb_matrix_set_color_all(0, 0, 0);
-        for (uint8_t j = 0; j < DRIVER_LED_TOTAL; ++j) {
-            led[j] = (random8() & 2) ? (RGB){0,0,0} : hsv_to_rgb((HSV){random8(), qadd8(random8() >> 1, 127), rgb_matrix_config.hsv.v});
-        }
-    }
-
-    RGB_MATRIX_USE_LIMITS(led_min, led_max);
-    // Light LEDs based on state array
-    for (uint8_t i = led_min; i < led_max; ++i) {
-        RGB_MATRIX_TEST_LED_FLAGS();
-        rgb_matrix_set_color(i, led[i].r, led[i].g, led[i].b);
-    }
-
-    if (!rgb_matrix_check_finished_leds(led_max)) {
-        // Shift LED state forward
-        for (uint8_t j = 0; j < led_max-1; ++j) {
-            led[j] = led[j+1];
-        }
-        // Fill last LED
-        led[led_max-1] = (random8() & 2) ? (RGB){0,0,0} : hsv_to_rgb((HSV){random8(), qadd8(random8() >> 1, 127), rgb_matrix_config.hsv.v});
-        // Set pulse timer
-        wait_timer = g_rgb_timer + interval();
-    }
-
-    return rgb_matrix_check_finished_leds(led_max);
-}
-
-#    endif  // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
-#endif      // ENABLE_RGB_MATRIX_PIXEL_FLOW

quantum/rgb_matrix/animations/rgb_matrix_effects.inc

@@ -27,7 +27,6 @@
 #include "hue_pendulum_anim.h"
 #include "hue_wave_anim.h"
 #include "pixel_rain_anim.h"
-#include "pixel_flow_anim.h"
 #include "pixel_fractal_anim.h"
 #include "typing_heatmap_anim.h"
 #include "digital_rain_anim.h"