remove even more BackstageTheme usages

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

plugins/github-actions/src/components/Cards/Cards.tsx

@@ -15,12 +15,7 @@
  */
 
 import { useEntity } from '@backstage/plugin-catalog-react';
-import {
-  LinearProgress,
-  makeStyles,
-  Theme,
-  Typography,
-} from '@material-ui/core';
+import { LinearProgress, makeStyles, Typography } from '@material-ui/core';
 import ExternalLinkIcon from '@material-ui/icons/Launch';
 import React, { useEffect } from 'react';
 import { GITHUB_ACTIONS_ANNOTATION } from '../getProjectNameFromEntity';
@@ -36,7 +31,7 @@ import {
 } from '@backstage/core-components';
 import { getHostnameFromEntity } from '../getHostnameFromEntity';
 
-const useStyles = makeStyles<Theme>({
+const useStyles = makeStyles({
   externalLinkIcon: {
     fontSize: 'inherit',
     verticalAlign: 'bottom',

plugins/github-actions/src/components/WorkflowRunLogs/WorkflowRunLogs.tsx

@@ -23,7 +23,6 @@ import {
   Fade,
   makeStyles,
   Modal,
-  Theme,
   Tooltip,
   Typography,
   Zoom,
@@ -35,7 +34,7 @@ import { getProjectNameFromEntity } from '../getProjectNameFromEntity';
 import { useDownloadWorkflowRunLogs } from './useDownloadWorkflowRunLogs';
 import { getHostnameFromEntity } from '../getHostnameFromEntity';
 
-const useStyles = makeStyles<Theme>(theme => ({
+const useStyles = makeStyles(theme => ({
   button: {
     order: -1,
     marginRight: 0,