metal : revert 6af0bab until we fix it

This restores the generated text to be the same as before #2959

ggml-metal.metal

@@ -536,27 +536,14 @@ kernel void kernel_mul_mat_f16_f32_1row(
     device const float * y = (device const float *) (src1 + r1*nb11 + im*nb12);
 
     float sumf = 0;
-    if (ne00 < 128) {
-        for (int i = tiisg; i < ne00; i += 32) {
-            sumf += (float) x[i] * (float) y[i];
-        }
-        float all_sum = simd_sum(sumf);
-        if (tiisg == 0) {
-            dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
-        }
-    } else {
-        device const half4  * x4 = (device const half4  *) x;
-        device const float4 * y4 = (device const float4 *) y;
-        for (int i = tiisg; i < ne00/4; i += 32) {
-            for (int k = 0; k < 4; ++k) sumf += (float)x4[i][k] * y4[i][k];
-        }
-        float all_sum = simd_sum(sumf);
-        if (tiisg == 0) {
-            for (int i = 4*(ne00/4); i < ne00; ++i) sumf += (float) x[i] * y[i];
-            dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
-        }
+    for (int i = tiisg; i < ne00; i += 32) {
+        sumf += (float) x[i] * (float) y[i];
     }
 
+    float all_sum = simd_sum(sumf);
+    if (tiisg == 0) {
+        dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
+    }
 }
 
 #define N_F16_F32 4
@@ -588,49 +575,24 @@ kernel void kernel_mul_mat_f16_f32(
 
     device const half * x = (device const half *) (src0 + r0*nb01 + im/(ne12/ne02)*nb02);
 
-    if (ne00 < 128) {
-        for (int row = 0; row < N_F16_F32; ++row) {
-            int r1 = rb + row;
-            if (r1 >= ne11) {
-                break;
-            }
-
-            device const float * y = (device const float *) (src1 + r1*nb11 + im*nb12);
-
-            float sumf = 0;
-            for (int i = tiisg; i < ne00; i += 32) {
-                sumf += (float) x[i] * (float) y[i];
-            }
-
-            float all_sum = simd_sum(sumf);
-            if (tiisg == 0) {
-                dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
-            }
+    for (int row = 0; row < N_F16_F32; ++row) {
+        int r1 = rb + row;
+        if (r1 >= ne11) {
+            break;
         }
-    } else {
-        device const half4 * x4 = (device const half4 *)x;
-        for (int row = 0; row < N_F16_F32; ++row) {
-            int r1 = rb + row;
-            if (r1 >= ne11) {
-                break;
-            }
 
-            device const float  * y  = (device const float  *) (src1 + r1*nb11 + im*nb12);
-            device const float4 * y4 = (device const float4 *) y;
+        device const float * y = (device const float *) (src1 + r1*nb11 + im*nb12);
 
-            float sumf = 0;
-            for (int i = tiisg; i < ne00/4; i += 32) {
-                for (int k = 0; k < 4; ++k) sumf += (float) x4[i][k] * y4[i][k];
-            }
+        float sumf = 0;
+        for (int i = tiisg; i < ne00; i += 32) {
+            sumf += (float) x[i] * (float) y[i];
+        }
 
-            float all_sum = simd_sum(sumf);
-            if (tiisg == 0) {
-                for (int i = 4*(ne00/4); i < ne00; ++i) sumf += (float) x[i] * y[i];
-                dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
-            }
+        float all_sum = simd_sum(sumf);
+        if (tiisg == 0) {
+            dst[im*ne1*ne0 + r1*ne0 + r0] = all_sum;
         }
     }
-
 }
 
 kernel void kernel_alibi_f32(