Revert "mt76: fix compilation error with mt7915 and kernel >= 5.15.61"

This reverts commit 6e9613844c.

The patch was wrong in the first place as we base everything on
backports package and the compilation error was caused by an ath11k
present downstream. (will be needed later when backports package will be
updated but not now)

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

package/kernel/mt76/patches/0001-mt76-mt7915-fix-changed-IEEE80211_MAX_AMPDU_BUF-defi.patch

@@ -1,38 +0,0 @@
-From 2994307fe092a9627e12ad7cd9f32f4d36c201d8 Mon Sep 17 00:00:00 2001
-From: Christian Marangi <ansuelsmth@gmail.com>
-Date: Sun, 25 Sep 2022 15:58:37 +0200
-Subject: [PATCH] mt76: mt7915: fix changed IEEE80211_MAX_AMPDU_BUF define in
- new kernel
-
-New kernel use IEEE80211_MAX_AMPDU_BUF_HE instead of
-IEEE80211_MAX_AMPDU_BUF.
-This got backported to stable kernel 5.15.61 and cause compilation
-error.
-Add required ifdef to handle this changed define.
-
-Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
----
- mt7915/init.c | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/mt7915/init.c b/mt7915/init.c
-index 489f6e77..1813370a 100644
---- a/mt7915/init.c
-+++ b/mt7915/init.c
-@@ -327,8 +327,13 @@ mt7915_init_wiphy(struct ieee80211_hw *hw)
- 	struct mt7915_dev *dev = phy->dev;
- 
- 	hw->queues = 4;
-+#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 15, 61))
- 	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
- 	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF;
-+#else
-+	hw->max_rx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
-+	hw->max_tx_aggregation_subframes = IEEE80211_MAX_AMPDU_BUF_HE;
-+#endif
- 	hw->netdev_features = NETIF_F_RXCSUM;
- 
- 	hw->radiotap_timestamp.units_pos =
--- 
-2.37.2
-