Fix duplicated doc comment line and empty line after doc comment

Author: eduardosm

crates/core_arch/src/x86/avx512f.rs

@@ -2770,8 +2770,6 @@ pub unsafe fn _mm_maskz_min_ps(k: __mmask8, a: __m128, b: __m128) -> __m128 {
     transmute(simd_select_bitmask(k, min, zero))
 }
 
-/// Compare packed double-precision (64-bit) floating-point elements in a and b, and store packed minimum values in dst.
-
 /// Compare packed double-precision (64-bit) floating-point elements in a and b, and store packed minimum values in dst.
 ///
 /// [Intel's documentation](https://www.intel.com/content/www/us/en/docs/intrinsics-guide/index.html#text=_mm512_min_pd&expand=3759)

crates/core_arch/src/x86/avx512fp16.rs

@@ -2308,7 +2308,6 @@ pub unsafe fn _mm512_maskz_div_ph(k: __mmask32, a: __m512h, b: __m512h) -> __m51
 /// * [`_MM_FROUND_CUR_DIRECTION`] : use `MXCSR.RC` - see [`_MM_SET_ROUNDING_MODE`]
 ///
 /// [Intel's documentation](https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm512_div_round_ph)
-
 #[inline]
 #[target_feature(enable = "avx512fp16")]
 #[cfg_attr(test, assert_instr(vdivph, ROUNDING = 8))]