refactor(datetime): remove safari 14 hack (#29035)

Issue number: Internal

---------

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## What is the current behavior?
<!-- Please describe the current behavior that you are modifying. -->

This code was added to account for a Safari 14 issue that would cause
datetime to render incorrectly. The Safari bug was fixed starting in
Safari 15. However, Ionic v7 supported back to Safari 14.

More context is available
[here](#24421 (comment))

## What is the new behavior?
<!-- Please describe the behavior or changes that are being added by
this PR. -->

- Removed the Safari 14 workarounds since Ionic v8 does not support
Safari 14

I tested on iOS 15, 16, and 17 to verify that removing this hack does
not cause any issues. Also verified that removing this hack does
reproduce the issue on iOS 14 (to verify that I am reproducing the
original issue correctly)

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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screenshots of how the component looks before and after the change. -->

Author: liamdebeasi

core/src/components/datetime/datetime.tsx

@@ -1662,14 +1662,6 @@ export class Datetime implements ComponentInterface {
         disabled={disabled}
         value={todayString}
         onIonChange={(ev: CustomEvent) => {
-          // TODO(FW-1823) Remove this when iOS 14 support is dropped.
-          // Due to a Safari 14 issue we need to destroy
-          // the scroll listener before we update state
-          // and trigger a re-render.
-          if (this.destroyCalendarListener) {
-            this.destroyCalendarListener();
-          }
-
           const { value } = ev.detail;
           const findPart = parts.find(({ month, day, year }) => value === `${year}-${month}-${day}`);
 
@@ -1683,10 +1675,6 @@ export class Datetime implements ComponentInterface {
             ...findPart,
           });
 
-          // We can re-attach the scroll listener after
-          // the working parts have been updated.
-          this.initializeCalendarListener();
-
           ev.stopPropagation();
         }}
       >
@@ -1793,14 +1781,6 @@ export class Datetime implements ComponentInterface {
         disabled={disabled}
         value={pickerColumnValue}
         onIonChange={(ev: CustomEvent) => {
-          // TODO(FW-1823) Remove this when iOS 14 support is dropped.
-          // Due to a Safari 14 issue we need to destroy
-          // the scroll listener before we update state
-          // and trigger a re-render.
-          if (this.destroyCalendarListener) {
-            this.destroyCalendarListener();
-          }
-
           this.setWorkingParts({
             ...workingParts,
             day: ev.detail.value,
@@ -1811,10 +1791,6 @@ export class Datetime implements ComponentInterface {
             day: ev.detail.value,
           });
 
-          // We can re-attach the scroll listener after
-          // the working parts have been updated.
-          this.initializeCalendarListener();
-
           ev.stopPropagation();
         }}
       >
@@ -1848,14 +1824,6 @@ export class Datetime implements ComponentInterface {
         disabled={disabled}
         value={workingParts.month}
         onIonChange={(ev: CustomEvent) => {
-          // TODO(FW-1823) Remove this when iOS 14 support is dropped.
-          // Due to a Safari 14 issue we need to destroy
-          // the scroll listener before we update state
-          // and trigger a re-render.
-          if (this.destroyCalendarListener) {
-            this.destroyCalendarListener();
-          }
-
           this.setWorkingParts({
             ...workingParts,
             month: ev.detail.value,
@@ -1866,10 +1834,6 @@ export class Datetime implements ComponentInterface {
             month: ev.detail.value,
           });
 
-          // We can re-attach the scroll listener after
-          // the working parts have been updated.
-          this.initializeCalendarListener();
-
           ev.stopPropagation();
         }}
       >
@@ -1902,14 +1866,6 @@ export class Datetime implements ComponentInterface {
         disabled={disabled}
         value={workingParts.year}
         onIonChange={(ev: CustomEvent) => {
-          // TODO(FW-1823) Remove this when iOS 14 support is dropped.
-          // Due to a Safari 14 issue we need to destroy
-          // the scroll listener before we update state
-          // and trigger a re-render.
-          if (this.destroyCalendarListener) {
-            this.destroyCalendarListener();
-          }
-
           this.setWorkingParts({
             ...workingParts,
             year: ev.detail.value,
@@ -1920,10 +1876,6 @@ export class Datetime implements ComponentInterface {
             year: ev.detail.value,
           });
 
-          // We can re-attach the scroll listener after
-          // the working parts have been updated.
-          this.initializeCalendarListener();
-
           ev.stopPropagation();
         }}
       >