servo: Merge #19424 - Remove unused generic from push_applicable_declarations (from mbrubeck:veclike); r=emilio

This function is only ever used with one type.

This gets rid of the only use of the `smallvec::VecLike` trait, which we may want to deprecate (servo/rust-smallvec#35).  If we do need to make this function generic in the future, we can do it using standard traits instead.

---
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors
- [x] These changes do not require tests because they are removing unused code

Source-Repo: https://github.com/servo/servo
Source-Revision: dbe3136a055008d2c27c7d96f20e0c9ce4b1cb1c

UltraBlame original commit: 6b3c508ccd771b8e529679a7680e7ba03d40ffca

Author: marco-c

servo/components/style/selector_map.rs

@@ -8,7 +8,7 @@ use
 applicable_declarations
 :
 :
-ApplicableDeclarationBlock
+ApplicableDeclarationList
 ;
 use
 context
@@ -99,10 +99,7 @@ use
 smallvec
 :
 :
-{
 SmallVec
-VecLike
-}
 ;
 use
 std
@@ -555,7 +552,6 @@ fn
 get_all_matching_rules
 <
 E
-V
 F
 >
 (
@@ -573,7 +569,7 @@ matching_rules_list
 :
 &
 mut
-V
+ApplicableDeclarationList
 context
 :
 &
@@ -601,12 +597,6 @@ where
 E
 :
 TElement
-V
-:
-VecLike
-<
-ApplicableDeclarationBlock
->
 F
 :
 FnMut
@@ -799,7 +789,6 @@ fn
 get_matching_rules
 <
 E
-V
 F
 >
 (
@@ -817,7 +806,7 @@ matching_rules
 :
 &
 mut
-V
+ApplicableDeclarationList
 context
 :
 &
@@ -842,12 +831,6 @@ where
 E
 :
 TElement
-V
-:
-VecLike
-<
-ApplicableDeclarationBlock
->
 F
 :
 FnMut

servo/components/style/stylist.rs

@@ -271,15 +271,6 @@ use
 selectors
 :
 :
-sink
-:
-:
-Push
-;
-use
-selectors
-:
-:
 visitor
 :
 :
@@ -311,21 +302,6 @@ smallbitvec
 SmallBitVec
 ;
 use
-smallvec
-:
-:
-VecLike
-;
-use
-std
-:
-:
-fmt
-:
-:
-Debug
-;
-use
 std
 :
 :
@@ -4607,7 +4583,6 @@ fn
 push_applicable_declarations
 <
 E
-V
 F
 >
 (
@@ -4658,7 +4633,7 @@ applicable_declarations
 :
 &
 mut
-V
+ApplicableDeclarationList
 context
 :
 &
@@ -4680,19 +4655,6 @@ where
 E
 :
 TElement
-V
-:
-Push
-<
-ApplicableDeclarationBlock
->
-+
-VecLike
-<
-ApplicableDeclarationBlock
->
-+
-Debug
 F
 :
 FnMut
@@ -5180,12 +5142,10 @@ sa
 =
 style_attribute
 {
-Push
-:
-:
+applicable_declarations
+.
 push
 (
-applicable_declarations
 ApplicableDeclarationBlock
 :
 :
@@ -5213,12 +5173,10 @@ so
 =
 smil_override
 {
-Push
-:
-:
+applicable_declarations
+.
 push
 (
-applicable_declarations
 ApplicableDeclarationBlock
 :
 :
@@ -5248,12 +5206,10 @@ animation_rules
 .
 0
 {
-Push
-:
-:
+applicable_declarations
+.
 push
 (
-applicable_declarations
 ApplicableDeclarationBlock
 :
 :
@@ -5306,12 +5262,10 @@ animation_rules
 .
 1
 {
-Push
-:
-:
+applicable_declarations
+.
 push
 (
-applicable_declarations
 ApplicableDeclarationBlock
 :
 :